An iPad charger has 45 Ohms of resistance and a current of 0.2 amps flowing through it.
How much voltage is supplied to the iPad charger?

V = 9 volts

Explanation:

Ohm's Law gives a relationship between the voltage supply and the current passing through a circuit. The formula given by the Ohm's Law is written as follows:

V = IR

where,

V = Voltage supplied to the charger = ?

I = Current flowing through the circuit of the charger = 0.2 A

R = Resistance of the charger = 45 Ohms

Therefore, using these values in the equation, we get:

V = (0.2 A)(45 Ohms)

V = 9 volts

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