EASY
JEE Advanced
IMPORTANT
Earn 100

In the circuit shown, three identical light bulbs are connected to a battery. The brightness of the bulb

Question Image

50% studentsanswered this correctly

Important Questions on Current Electricity

EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 85
The resistor of resistance R is connected to 25 V supply and heat produced in it is 25 J s-1. The value of R is
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 86
Some electric bulbs are connected in series across a 220 V supply in a room. If one bulb is fused, then remaining bulbs are connected again in series (after removing the fused bulb) across the same supply. The illumination in the room will
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 87
If a wire of resistance 20 Ω is covered with ice (at 0 °C) and a voltage of 210 V is applied across the wire, then the rate of melting of ice is
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 88
An electric kettle has two heating elements. One brings it to boil 10 min and the other in 15 min. If two heating filaments are connected in parallel, the water in kettle will boil in
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 89
A battery of internal resistance 4 Ω is connected to the network of resistances as shown. In order to give the maximum power to the network, the value of R in Ω should be
Question Image
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 90
Just as electricity is supplied at 220 V for domestic use in India, it is supplied at 110 V in USA. If a resistance of 60 W bulb for use in India is R, that of 60 W bulb for use USA will be
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 91
Consider four circuits shown in the figure below. In which circuit power dissipated is greatest? (Neglect the internal resistance of the power supply)
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 92
The terminal potential difference of a cell is greater than its emf when it is