Question

find potential drop when resistor is 4 ohm and voltage is 18 V
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Answer 1

Answer:

18 V

Explanation:

According to ohm's law:

V=IR

I=V/R

I=18/4

I=4.5

Potential drop

=4.5*4

=18V

The voltage drop across the resistor is the same as the voltage of the DC source.