CAPE Physics Unit 2 · 2017 · Paper 1 · Question Q16

What is the r.m.s value of a sinusoidal signal of peak value 3.0\text{ V}?

1. (A)1.50\text{ V}
2. (B)2.12\text{ V}
3. (C)4.24\text{ V}
4. (D)6.00\text{ V}