A conductor of length 2.0m is falling freely under gravity from a height of 15 m so that it cuts the magnetic lines of force of the horizontal component of Earth's magnetic field of strength 0.3 gauss. Calculate the emf induced across the conductor.

Explanation

To solve the problem of calculating the induced EMF across a falling conductor, we can follow these steps:

### Step 1: Identify the given data
- Length of the conductor (L) = 2.0 m
- Height from which the conductor is falling (H) = 15 m
- Horizontal component of Earth's magnetic field (B) = 0.3 gauss

### Step 2: Convert the magnetic field strength from gauss to tesla
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