-
A meter has a full-scale deflection of 90° at a current of 1A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45° will be _________A
-
- 5
- 1.2
- 0.707
- 0.8
Correct Option: C
We know, TD = Cθ ..........(i)
Also TD = KI² .........(ii)
From equations (i) and (ii),
| I² = | θ = C'.θ | |
| K |
| ∴ | = | >= | >|||
| 1 | C(π/2) | 2 |
or I = 0.707 A
