When a sinusoidal signal of 220 V, 50 Hz produces on CRO a vertical deflection of 2 cm at a particular setting of the vertical gain control, what would be the value of the voltage to be applied to produce a deflection of 3 cm for the same vertical gain ?

When a sinusoidal signal of 220 V, 50 Hz produces on CRO a vertical de

1.	When a sinusoidal signal of 220 V, 50 Hz produces on CRO a vertical deflection of 2 cm at a particular setting of the vertical gain control, what would be the value of the voltage to be applied to produce a deflection of 3 cm for the same vertical gain ?
A.	330 V
B.	110 V
C.	220 V
D.	55 V
Answer» B. 110 V