Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 66

EASY

JEE Advanced

IMPORTANT

Earn 100

In the circuit shown each resistance is $R = 2 Ω$ . If a $D C$ source of $10 V$ is connected between $A$ and $B,$ then the current $I$ is

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 67

Which arrangement of four identical resistances should be used to draw maximum energy from a cell of voltage

V

?

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 68

One kilowatt hour is equal to

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 69

If

R_{1}

and

R_{2}

are respectively, the filament resistances of a

200 W

bulb and

100 W

bulb designed to operate on the same voltage, then

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 70

The electric bulb have tungsten filaments of same length. If one of them gives

60 W

and other

100 W

, then

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 71

Three identical bulbs are connected in series and these together dissipate a power

P

. If now the bulbs are connected in parallel through the same source, then the power dissipated 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 72

Two bulbs of wattage

40 W

and

100 W

rated at

220 V

are connected in series across a

440 V

. What will happen?

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 73

A

and

B

are two bulbs connected in parallel.

A

is glowing brighter than

B

, then the relation between

R_{A}

and

R_{B}

is

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 74

A resistor of resistance

R

is connected to an ideal battery. If the value of

R

is decreased, the power dissipated in the resistor will: