Question

If the number of turns in a coil is tripled, the value of the magnetic flux linked with the coil:

• A. remains unchanged
• B. becomes \(\frac{1}{3}\) times
• C. is tripled
• D. becomes \(\frac{2}{3}\) times

Hint:

Flux linked \(=NBA\cos\theta\).

Answer 1

The Correct Option is C

Step 1: Think of each turn.
One turn links a flux \(\phi_0 = BA\cos\theta\). With N turns in series, the flux linked with the whole coil is \(N\phi_0\).

Step 2: Triple the turns.
New flux is \(3N\phi_0 = 3(N\phi_0)\), which is three times the old one.

Step 3: Answer.
This is option 3.

Final Answer:
The linked flux becomes three times larger, option 3. \[ \boxed{\text{is tripled}} \]