Describe an activity to study magnetic effect of electric current with the help of a diagram .
Answers
Take a thick straight copper wire and place it between the points X and Y in an electric circuit. Place a small compass near to this wire. See the position of its needle. Pass the current through the circuit by inserting the key into the plug. Observe the change in the position of the compass needle. (Compass needle is deflected on passing an electric current through a metallic conductor)
Answer:
Take an iron nail and wrap a conducting wire around it as a coil. Then connect the two ends of the wire to a source of electric current and allow current to pass through it. You will observe that an iron nail behaves like a magnet with its two ends acting as north and south poles. If an iron clip is brought near its end, it gets attracted to it.