Question

A 150- branch in a circuit must be reduced to 93 . A resistor will be added to this branch of the circuit to make this change. What value of resistance should be used and how must the resistor be connected

Answer 1

The value of resistance that should be used is 244.74 Ohms and the resistor must be connected in parallel.

Given the following data:

• Initial resistance, R₁ = 150 Ohms.

• Final resistance, R₂ = 93 Ohms.

What is a parallel circuit?

A parallel circuit can be defined as an electrical circuit with the same potential difference (voltage) across its terminals.

In order to determine the magnitude of a resistor that should be added to this branch of the circuit, the electrical circuit would be connected as a parallel circuit.

Next, the total effective resistance of this electrical circuit is given by:

RT = (R₁ × R₂)/(R₁ - R₂)

RT = (150 × 93)/(150 - 93)

RT = 13950/57

RT = 244.74 Ohms.

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