Question

6A current flows across a series combination of 8 resistors of resistance 7 ohm calculate the p.d across the whole circuit .how would the amount of current and p.d be affected when another resistor of 5 ohm is added in series to the circuit

Answer 1

Explanation:

Voltage is the same across each component of the parallel circuit. The sum of the currents through each path is equal to the total current that flows from the source. You can find total resistance in a Parallel circuit with the following formula: 1/Rt = 1/R1 + 1/R2 + 1/R3 +...

As more and more resistors are added in parallel to a circuit, the equivalent resistance of the circuit decreases and the total current of the circuit increases. Adding more resistors in parallel is equivalent to providing more branches through which charge can flow.