EASY
NEET
IMPORTANT
Earn 100

A circuit containing five resistors is connected to a battery with a 12 V emf as shown in figure. The potential difference across 4 Ω resistor is

100% studentsanswered this correctly

Important Questions on Current Electricity

HARD
NEET
IMPORTANT
The temperature coefficient of resistance of tungsten is 4.5×10-3C-1 and that of germanium is -5×10-2C-1. A tungsten wire of resistance 100 Ω is connected in series with a germanium wire of resistance R. The value of R for which the resistance of combination does not change with temperature is
MEDIUM
NEET
IMPORTANT

Consider the ladder network shown in figure. What should be the value of resistance R, so that effective resistance between A & B becomes independent of number of elements in the combination?

Question Image

EASY
NEET
IMPORTANT

Effective resistance across AB in the network shown in

Question Image

EASY
NEET
IMPORTANT

Resistance across AB as shown in figure is

Question Image

MEDIUM
NEET
IMPORTANT

In the circuit shown, the thermal power dissipated in R1 is P. The thermal power dissipated in R2 is

Question Image

HARD
NEET
IMPORTANT

In the circuit shown in figure, if ammeter and voltmeter are ideal, then the power consumed in 9 Ω resistor will be

Question Image

MEDIUM
NEET
IMPORTANT

In the network shown in figure, power dissipated in 3 Ω is 12 W. Power dissipated in 4 Ω will be

Question Image

HARD
NEET
IMPORTANT

Potential difference VA-VB in the network shown is

Question Image