Tuesday, 16 January 2018
Sunday, 14 January 2018
numericals on ohms law by AIIMIIT
1.find potential when current of 3 mA flows across a resistance of 1000ohms ?
2.find potential when 5 c of charge flows for 2 secs across a resistance of 4 ohms?
3.find resistance when a current of 5 amp flows across a p d of 110v?
4.find potential when 10 power 19 electrons flow for 10 seconds acoss a resistance of 12ohms?
5.find current flowing in a conductor when potential of 220v applied across a resistance of 12ohms?
6.find resistance when slope makes an angle of 30 degrees alon x axis in x y plane?
7.what happens to current if potential applied is reduced to half or doubled?
8.what potential is applied in india ?
9.what is source of potential in circuit?
10.what is use of neutral wire in along with live wire?
11.what is difference between potential and potential difference?
12.what is work done if 10 col of charge flows and 5 milli amp of current flows across 100 ohms resistance?
13.what is work done if 10 power 20 electrons flows across carrying 5 milli ampere a over 1000 ohms resistance?
14.Give an example of non-ohmic devices
Ans is transistors and diodes
15.what is slope of v-i graph gives .What is conductance and its units?
16.what instrument is used to measure resistance?
2.find potential when 5 c of charge flows for 2 secs across a resistance of 4 ohms?
3.find resistance when a current of 5 amp flows across a p d of 110v?
4.find potential when 10 power 19 electrons flow for 10 seconds acoss a resistance of 12ohms?
5.find current flowing in a conductor when potential of 220v applied across a resistance of 12ohms?
6.find resistance when slope makes an angle of 30 degrees alon x axis in x y plane?
7.what happens to current if potential applied is reduced to half or doubled?
8.what potential is applied in india ?
9.what is source of potential in circuit?
10.what is use of neutral wire in along with live wire?
11.what is difference between potential and potential difference?
12.what is work done if 10 col of charge flows and 5 milli amp of current flows across 100 ohms resistance?
13.what is work done if 10 power 20 electrons flows across carrying 5 milli ampere a over 1000 ohms resistance?
14.Give an example of non-ohmic devices
Ans is transistors and diodes
15.what is slope of v-i graph gives .What is conductance and its units?
16.what instrument is used to measure resistance?
Numericals on poteential and potential difference
1.what is potential when 10 joules of work done in moving 10 coloumbs of charge?
2.what is potential when 50 joules of work is done in moving 10 to power of 19 electrons?
3.how much work must be done to move 10 to power 19 electron across a potential difference of 220v?
4.find amount of potential at point point b if 10 v of potential is at point a which does a work of 20 j in moving 5 c of charge?
5.what is difference between potential difference and emf?
6.how can u convert galvanometer to voltmetre.why volt metre always conected in parrale?
7.what is the fifference beyween voltmetre and volta-metre?
8.define one volt?
9.what are sources of potential in a circuit?
10.how much charge flows across a pd of 220v when 11j of work is done in moving a charge?
11.find potential when 20 j of work done in moving 5 amp of current flows for 2 seconds ?
12.find potential when 1.6 joules of work done in moving 10 power of 19 electrons ?
2.what is potential when 50 joules of work is done in moving 10 to power of 19 electrons?
3.how much work must be done to move 10 to power 19 electron across a potential difference of 220v?
4.find amount of potential at point point b if 10 v of potential is at point a which does a work of 20 j in moving 5 c of charge?
5.what is difference between potential difference and emf?
6.how can u convert galvanometer to voltmetre.why volt metre always conected in parrale?
7.what is the fifference beyween voltmetre and volta-metre?
8.define one volt?
9.what are sources of potential in a circuit?
10.how much charge flows across a pd of 220v when 11j of work is done in moving a charge?
11.find potential when 20 j of work done in moving 5 amp of current flows for 2 seconds ?
12.find potential when 1.6 joules of work done in moving 10 power of 19 electrons ?
Numericals on current by AIIMIIT
1.what is charge flowing in a conductor when 10 milli amperes flow for 1 minute?
2.what is the current flowing in a conductor when 10 mega electrons flow for 10 seconds?
3.what is the charge if 5 milli amperes flow for one micro second?
4.how many electrons are present when 1.6 amperes flows for one milli second?
5.what is the charge when 10 amperes flow for ten seconds?
6.how much current flow when one avagadro no of electrons flow for 6023 seconds?
7.what is difference between electronics and electrical?
8.what is ammetre ,how do u convert galvanometre to ammetre?
9.why ammetre is always connected in series,what happens if connected in parallel?
10.define one amperes?
11.a current of 0.25 amp flows in a circuit.how much charge passes through it in 1 hour?
12.A current of 20 milliamperes flows for 1minute 30 Seconds. Find charge?
13.what is a semi conductor give examples?
14.what is meant by drift speed.what is its formula?
Drift speed formula is i=vanq
Where v is called drift speed
A is area of cross section of conductor
N number of electrons passing per volume
Q is charge
Current
1.Current is denoted by letter I
2.Units are ampere
3.Definition is rate of flow of charge is called current
4.Formula q=i/t
5.1 ampere
When 1 columb of charge flows for one second it is called one ampere
6.Current detected by galvanometer
7.Measured by ammeter.
8.Ammeter is always connected in series
Because
a.i t has low resistance
b.to measure total current .
9.Two types of currents are
1.electrical current
Flows from negative to positive
2.convectional current
Flows from positive to negative
10.Circuit definition
Continuous and closed path of electric current is called circuit.
a.Open circuit.; circuit in which current is not flowing (switch off )
b.Closed corcuit;circuit in which current is flowing (switch on).
11.Ameter is shunt resistance
12.Galvanometer to which high resistance is connected in parallel is called a meter.
2.what is the current flowing in a conductor when 10 mega electrons flow for 10 seconds?
3.what is the charge if 5 milli amperes flow for one micro second?
4.how many electrons are present when 1.6 amperes flows for one milli second?
5.what is the charge when 10 amperes flow for ten seconds?
6.how much current flow when one avagadro no of electrons flow for 6023 seconds?
7.what is difference between electronics and electrical?
8.what is ammetre ,how do u convert galvanometre to ammetre?
9.why ammetre is always connected in series,what happens if connected in parallel?
10.define one amperes?
11.a current of 0.25 amp flows in a circuit.how much charge passes through it in 1 hour?
12.A current of 20 milliamperes flows for 1minute 30 Seconds. Find charge?
13.what is a semi conductor give examples?
14.what is meant by drift speed.what is its formula?
Drift speed formula is i=vanq
Where v is called drift speed
A is area of cross section of conductor
N number of electrons passing per volume
Q is charge
Current
1.Current is denoted by letter I
2.Units are ampere
3.Definition is rate of flow of charge is called current
4.Formula q=i/t
5.1 ampere
When 1 columb of charge flows for one second it is called one ampere
6.Current detected by galvanometer
7.Measured by ammeter.
8.Ammeter is always connected in series
Because
a.i t has low resistance
b.to measure total current .
9.Two types of currents are
1.electrical current
Flows from negative to positive
2.convectional current
Flows from positive to negative
10.Circuit definition
Continuous and closed path of electric current is called circuit.
a.Open circuit.; circuit in which current is not flowing (switch off )
b.Closed corcuit;circuit in which current is flowing (switch on).
11.Ameter is shunt resistance
12.Galvanometer to which high resistance is connected in parallel is called a meter.
Friday, 12 January 2018
Numericals on charge
1.find the number of electrons in 1 col of charge?
2.find charge when 1 electron is flowing in the conductor?
3.find total no of electrons flowing when 6023 col of charge is present in conductor?
4.find no. Of electrons present in 2 col .of charge?
5.find charge of electron when 10 power 23 electrons carry 6.023 col of charge?
In all above numericals take charge of electron 6.023×10 power negaative 23 col
6.find number of electrons present in 3.2 c of charge
7.find umber of electrons present in 6.4 c of charge
8.find charge if 10 power 19 electrons are flowing in conductor
9.find charge if avagadro number of elecyrons are flowing im conductor
10.find charge if 10 power 20 electrons are flowing in comdictor
11.using coloumbs inverse square law find force between 2 charges of 10 c and 20 c present at 2 m distance
12.find number of electrons if 1600 c of sharge present in cinductor
13.using columbs inverse suare law finf force between 2 charges 1 c and 2c separated by 2mm distance
14.if 1/4 pi e0 value is 9×10power 9
Find value of e0
2.find charge when 1 electron is flowing in the conductor?
3.find total no of electrons flowing when 6023 col of charge is present in conductor?
4.find no. Of electrons present in 2 col .of charge?
5.find charge of electron when 10 power 23 electrons carry 6.023 col of charge?
In all above numericals take charge of electron 6.023×10 power negaative 23 col
6.find number of electrons present in 3.2 c of charge
7.find umber of electrons present in 6.4 c of charge
8.find charge if 10 power 19 electrons are flowing in conductor
9.find charge if avagadro number of elecyrons are flowing im conductor
10.find charge if 10 power 20 electrons are flowing in comdictor
11.using coloumbs inverse square law find force between 2 charges of 10 c and 20 c present at 2 m distance
12.find number of electrons if 1600 c of sharge present in cinductor
13.using columbs inverse suare law finf force between 2 charges 1 c and 2c separated by 2mm distance
14.if 1/4 pi e0 value is 9×10power 9
Find value of e0
Subscribe to:
Posts (Atom)