Home
Class 12
PHYSICS
A heating coil is labelled 100 W, 220 V....

A heating coil is labelled `100 W, 220 V`. The coil is cut in two equal halves and the two pieces are joined in parallel to the same source. The energy now liberated per second is

A

200 J

B

400 J

C

25 J

D

50 J

Text Solution

Verified by Experts

The correct Answer is:
B
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

A heating coil is labelled 100 W, 220 V, the coil is cut in half and two pieces are joined in parallel to the same source. t/he energy now liberated per second is

A heating coil is rated 100 W , 200 V . The coil is cut in half and two pieces are joined in parallel to the same source . Now what is the energy ( "in" xx 10^(2) J) liberated per second?

A heating coil transforms 100J of electrical energy into heat energy per second. The coil is cut into two halves and both the halves are joined togeter in parallel to the same source. Now the energy transformed per second will be

A heater coil is rated 100W,200V. It is cut into two identical parts. Both parts are connected together in parallel, to the same sources of 200V. Calculate the energy liberated per second in the new combination.

A heater coil is rated 100W,200V. It is cut into two identical parts. Both parts are connected together in parallel, to the same sources of 200V. Calculate the energy liberated per second in the new combination.

A heater coil is cut into two equal parts and only one part is now used in the heater. The heat generated will now be

Two electric bulbs A and B are rated as 60 W and 100 W . They are connected in parallel to the same source. Then,