|
Current electricity problems
|
|
0
|
358
|
July 5, 2019
|
|
Use Kirchhoff s rules to determine the value of the current $I_{1 }$ flowing in the circuit shown in the figure
|
|
2
|
25716
|
September 29, 2018
|
|
Calculate the value of R in the balance condition of the Wheatstone bridge
|
|
1
|
7618
|
December 12, 2016
|
|
Write two possible causes for one sided deflection in a potentiometer experiment
|
|
0
|
9502
|
December 12, 2016
|
|
Why are the connections between the resistors in a meter bridge made of thick copper strips?
|
|
1
|
23727
|
December 12, 2016
|
|
Determine the current in each branch of the following network
|
|
1
|
9508
|
December 12, 2016
|
|
AB is a potentiometer wire as shown in figure
|
|
1
|
3347
|
December 12, 2016
|
|
In the meter bridge experiment, the balance point
|
|
1
|
6613
|
December 12, 2016
|
|
Six lead-acid type of secondary cells each of emf 2 V
|
|
1
|
7179
|
December 12, 2016
|
|
Write any two factors on which internal resistance of a cell depends
|
|
1
|
11397
|
December 12, 2016
|
|
First a set of n equal resistors of R
|
|
1
|
3293
|
December 12, 2016
|
|
When is more power delivered to a light bulb
|
|
1
|
4608
|
December 12, 2016
|
|
Power P is to be delivered to a device via transmission cables
|
|
1
|
1806
|
December 12, 2016
|
|
Write two characteristics of manganin which make it suitable for making standard resistances
|
|
0
|
9630
|
December 12, 2016
|
|
Two conductors are made of the same material
|
|
1
|
6279
|
December 12, 2016
|
|
A conductor of length l
|
|
1
|
10521
|
December 12, 2016
|
|
What conclusion can you draw
|
|
1
|
895
|
December 12, 2016
|
|
A potentiometer wire of length 1 m has a resistance 10 ohm
|
|
0
|
12512
|
September 7, 2016
|
|
A battery of emf E and internal resistance r ohm when connected
|
|
0
|
886
|
September 7, 2016
|
|
State the underlying principle of a potentiometer. Why is it necessary to
|
|
1
|
11112
|
September 7, 2016
|
|
Derive an expression for the voltage across R when the sliding contact is in the middle of the potentiometer
|
|
1
|
3248
|
September 7, 2016
|
|
In the figure a long uniform potentiometer wire AB is having a constant potential gradient along its length
|
|
1
|
5038
|
September 7, 2016
|
|
State underlying principle of a potentiometer
|
|
1
|
4819
|
September 7, 2016
|
|
State the working principle of a potentiometer
|
|
1
|
12323
|
September 7, 2016
|
|
You are given two sets of potentiometer circuit to measure the emf of a cell
|
|
1
|
5717
|
September 7, 2016
|
|
For the circuit shown here, would the balancing length increase, decrease or remain the same
|
|
1
|
3249
|
September 7, 2016
|
|
Calculate the value of the unknown potential V for the given potentiometer circuit
|
|
1
|
5458
|
September 7, 2016
|
|
State the underlying principle of a potentiometer
|
|
0
|
1295
|
September 7, 2016
|
|
With the help of the circuit diagram, explain the working principle of meter bridge
|
|
1
|
12012
|
September 7, 2016
|
|
A uniform wire of resistance 48 ohm is cut into three pieces so that the ratio of the resistances
|
|
1
|
3602
|
September 7, 2016
|