Engineering Board Exam Reviewer · Ohm's Law · medium

In the circuit shown, the source is 24 V and the resistor is 8, . What would the ammeter read if the source voltage were doubled?

  1. 6 A
  2. 3 A
  3. 1.5 A
  4. 12 A

Answer

A. 6 A

Solution

Now I=V/R= 48 V8, =6 A (it was 3 A with the original voltage; current is proportional to voltage).

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