Question

when a switch is closed, a current of 5 A flows from the positive terminal of the battery to the negative terminal. calculate the value of a resistor A.

Answer 1

According to Ohom's law  

V= IR

V = potential difference between positive and negative terminal

R = resistance

I = current

R = (VA – VB)÷I

R= (V+ - V-)÷ 5 ohm