If a 1.5 v battery stores 6.7 kj of energy (a reasonable value for an inexpensive c cell), for 2.233 minutes could it sustain a current of 1.2 a.
From given information :
Battery voltage = 1.5 V
Energy = 6.7 kj
Current = 1.2 A
T = ?
So using Ohm's law
Energy = Power x Time
E = (V x I) x T
6.7 = (1.5 x 1.2) x T
T = 6.7 / 1.5 x 1.2
T = 2.233 min
A direct current's strength is directly correlated with the potential difference and inversely proportionate to the circuit resistance, according to the rule of electricity.
Ohm's Law is a formula used to calculate the relationship between voltage, current, and resistance in an electrical circuit. Ohm's Law (E = IR) is as basic to students of electronics as Einstein's Relativity equation (E = mc2) is to physicists.
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