A 35 kΩ is connected in series with a resistance of 40 kΩ. What resistance R must be connected in pa

JAMB Physics 2023 60 views

A 35 kΩ is connected in series with a resistance of 40 kΩ. What resistance R must be connected in parallel with the combination so that the equivalent resistance is equal to 25 kΩ?

  1. 40 kΩ
  2. 37.5 kΩ ✓
  3. 45.5 kΩ
  4. 30 kΩ

Explanation

This physics concept involves analyzing the given values and applying relevant formulas. Work through the problem step by step using known equations and constants.

Identify what quantity needs to be found and which formula connects the given information to the answer. Substitute the values carefully, paying attention to units.

Check that your calculated answer matches one of the options provided. Understanding the underlying principle helps verify the solution makes physical sense.

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