Asked by Bhharti
if three resistors are connected in parallel there are 10 ohm 20 ohm and 60 ohm to a battery of 12 volt then find the effective resistance ?
Answers
Answered by
Steve
just use the formula:
1/R = 1/10 + 1/20 + 1/60
The voltage does not matter. The formula works because each resistor allows a current to pass, and the currents add up to the total.
Since E=IR, I=E/R, and you have a total current of
12/10 + 12/20 + 12/60
That current is the total current I, and R=12/I. That is, I=12/R, the total resistance.
1/R = 1/10 + 1/20 + 1/60
The voltage does not matter. The formula works because each resistor allows a current to pass, and the currents add up to the total.
Since E=IR, I=E/R, and you have a total current of
12/10 + 12/20 + 12/60
That current is the total current I, and R=12/I. That is, I=12/R, the total resistance.
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