EASY
JEE Main
IMPORTANT
Earn 100

Calculate the effective resistance between A and B in the following network.

Question Image

50% studentsanswered this correctly

Important Questions on Current Electricity

EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 14 - Current Electricity>Level 1>Q 31
Two resistances are joined in parallel whose resultant is 68 Ω. One of the resistance wire is broken and the effective resistance becomes 2 Ω. Then, the resistance in ohm of the wire that got broken was
EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 14 - Current Electricity>Level 1>Q 32
If you are provided three resistance 2 Ω, 3 Ω and 6 Ω. How will you connect them so, as to obtain the equivalent resistance of 4 Ω?
EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 14 - Current Electricity>Level 1>Q 33

The equivalent resistance between P and Q in the figure is approximately.

Question Image

EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 14 - Current Electricity>Level 1>Q 34
Two wires of same metal have the same length but their cross-sections are in the ratio 3:1. They are joined in series. The resistance of the thicker wire is 10 Ω. The total resistance of the combination will be
EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 14 - Current Electricity>Level 1>Q 35

In the circuit, the current flowing through 10 Ω resistance is:

Question Image

EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 14 - Current Electricity>Level 1>Q 36
The drift velocity of electrons in a conducting wire is of the order of 1 mm s-1. Yet the bulb glows very quickly after the switch is put on because
EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 14 - Current Electricity>Level 1>Q 37
When current flows through a conductor, then the order of drift velocity of electrons will be:
EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 14 - Current Electricity>Level 1>Q 38
A battery is charged at a potential of 15 V in 8 h when the current flowing is 10 A. The battery on discharge supplies a current of 5 A for 15 h. The mean terminal voltage during discharge is 14 V. The watt-hour efficiency of battery is(in %)