Home
Class 12
PHYSICS
The internal resistance of primary cell ...

The internal resistance of primary cell is `4Omega` it genrater a current of `0.2A` and connected to a external resistance 0f '21Omega' in which resistance connected is providing the the heat per second is

A

`0.42 J//s`

B

`0.84 J//s`

C

5 J/s

D

1 J/s

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Heating Effect of Current|2 Videos

  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Chemical Effect Current|1 Videos

  • ELECTROSTATICS

    ERRORLESS |Exercise Ordinary Thinking Objective Questions (Electric Flux and Gauss.s Law)|28 Videos

  • KINETIC THEORY OF GASES

    ERRORLESS |Exercise QUESTIONS|126 Videos

Similar Questions

Explore conceptually related problems

The internal resistance of primary cell is 4Omega it generater a current of 0.2A in which chemical resistance connected is providing the current is

The internal resistance of a primary cell is 4 Omega . It generates a current of 0.2 A in a external circuit of 21Omega . The rate at which electric energy is consumed in providing the current is

The internal resistance of a 2.1 V cell which gives a current 0.2 A through a resistance of 10 Omega

Three cells of emf 2.0 v, 1.8 V and 1.5 V are connected in series. Their internal resistances are 0.05 Omega, 0.7 Omega " and " 1 Omega respectively. If the battery is connected to an external resistor of 4 Omega via a very resistance ammeter, what would be the reading in the ammeter ?

A battery of emf 2V and internal resistance 0.5(Omega) is connected across a resistance in 1 second?

A series-parallel combination battery consists of 300 identical cells, each with an internal resistance 0.3 Omega . It is connected to the external resistance 10 Omega . Find the number of parallel goups cosisting of equal number of cells connected in series, at which the external resistance generated the higher thermal power.