1.
In the circuit shown below, the ammeter A reads 5A and the voltmeter V reads 20V. The correct value of resistance R is
2.
The equivalent resistance between P and Q will be
3.
When a body is negatively charged by friction, it means the body has acquired excess of electrons
4.
What is the total resistance across A and B in the circuit shown in fig.
5.
An electric charge on a body produces
6.
Electromotive force represents
7.
If a charged body attracts another body, the charge on the other body
8.
A resistor of 25 cm length and 4 ohm is streached to a uniform wire of 50cm length. The resistance now is?
9.
If I is the current though a wire and e is the charge of electron, then the number of electrons in t seconds will given by
10.
There is no flow of current between two charged bodies when connected because
