A pendulum bob of mass 80 mg and carrying charge of ` 3 xx 10 ^(-8) C ` is placed in an horizontal electric field. It comes to equilibrium position at an angle of ` 37^@` with the vertical. Calculate the intensity of electric field. (g = `10 m//s^2` )

Explanation

To solve the problem of calculating the intensity of the electric field that causes a pendulum bob to come to equilibrium at an angle of 37° with the vertical, we can follow these steps:

### Step 1: Convert the mass of the bob to kilograms
Given:
- Mass of the bob, \( m = 80 \, \text{mg} = 80 \times 10^{-6} \, \text{kg} \)

### Step 2: Identify the charge on the bob
Given:
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