Question: Two point charges are 9 cm apart. One charge is 3 x 10 -6 C, the other is 6 x 10 -6 C. What is

  1. Two point charges are 9 cm apart. One charge is 3 x 10-6 C, the other is 6 x 10-6 C. What is the force between them in newtons?

The force between two point charges 20 cm apart is 16 N. What is the force when the distance between these same charges increased to 40 cm?

An iron is connected to a 120 V circuit. A current of 8 amperes flows through it. What is its resistance in ohms?

A 100W light bulb is turned on. It has an operating voltage of 120V. How much current flows through the bulb?

A 60W light bulb has an operating voltage of 120V. What is the resistance of the bulb?

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