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Fields and their consequences (A-level only)

Fields and their consequences (A-level only)

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Question 166

A micro-heating element in a lab sensor dissipates a mean power of 380 μW380\text{ }\mu\text{W}380 μW when connected to an AC signal generator. An oscilloscope shows that the sinusoidal peak-to-peak voltage across the element is 1.20 V. What is the peak current in this heating element?

A

3.17×10−4 A3.17 \times 10^{-4}\text{ A}3.17×10−4 A

B

8.96×10−4 A8.96 \times 10^{-4}\text{ A}8.96×10−4 A

C

1.27×10−3 A1.27 \times 10^{-3}\text{ A}1.27×10−3 A

D

4.48×10−4 A4.48 \times 10^{-4}\text{ A}4.48×10−4 A

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Fields and their consequences (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Fields and their consequences (A-level only)

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