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Question 18N.1.SL.TZ0.19

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Date November 2018 Marks available [Maximum mark: 1] Reference code 18N.1.SL.TZ0.19
Level SL Paper 1 Time zone TZ0
Command term Question number 19 Adapted from N/A
19.
[Maximum mark: 1]
18N.1.SL.TZ0.19

A wire of length L is used in an electric heater. When the potential difference across the wire is 200 V, the power dissipated in the wire is 1000 W. The same potential difference is applied across a second similar wire of length 2L. What is the power dissipated in the second wire?

 

A.   250 W

B.   500 W

C.   2000 W

D.   4000 W

[1]

Markscheme

B

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