Question

How much current will pass through a 12.5 ohm resistor when it is connected to ta 115 volt source of electrical potential?

Answer 1

9.2 amperes

Step-by-step explanation:

Ohm's law states that the voltage V across a conductor of resistance R is given by
`V = R I`

Here, voltage V is proportional to the current I.

For voltage, unit is volts (V)

For current, unit is amperes (A)

For resistance, unit is Ohms (Ω)

Put R = 12.5 and V = 115 in V=RI

`115=12.5I\\I=(115)/(12.5)\\ =9.2\,\,amperes`