(a) Draw magnetic field lines of a bar magnet. "Two magnetic field lines never intersect each other." Why ?
(b) An electric oven of 1.5 kW is operated in a dometic circuit (220V) that has a current rating of 5A. What result do you expect in this case ? Explain .
or
Which is meant by resistance of a conductor ? Name and define its SI units. List the factors on which the resistance of a conductor depends. How is the resistance of a wire affected if `-`
(i) its length is doubled , (ii) its radius is doubled ?

Explanation

### Step-by-Step Solution

#### Part (a): Drawing Magnetic Field Lines of a Bar Magnet

1. **Identify the Poles**: Start by drawing a bar magnet. Label one end as the North Pole (N) and the other end as the South Pole (S).

2. **Draw External Field Lines**: From the North Pole, draw lines that curve around and point towards the South Pole. These lines represent the magnetic field lines outside the magnet. They should be drawn as arrows pointing from N to S.

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