Short notes
Objective questions (Answers are given below)
- Maxwell-Wien bridge is used for measuring
(a) capacitance (b) dielectric loss
(c) inductance (d) phase angle - Maxwell’s L/C bridge is so called because
(a) it employs L and C in two arms
(b) ratio L/C remains constant
(c) for balance, it uses two opposite
impedances in opposite arms
(d) balance is obtained when L = C - …….. bridge is used for measuring an
unknown inductance in terms of a known
capacitance and resistance.
(a) Maxwell’s L/C (b) Hay’s
(c) Owen (d) Anderson - Anderson bridge is a modification of …….
bridge.
(a) Owen (b) Hay’s
(c) De Sauty (d) Maxwell-Wien - Hay’s bridge is particularly useful for
measuring
(a) inductive impedance with large phase angle
(b) mutual inductance
(c) self inductance
(d) capacitance and dielectric loss - The most useful ac bridge for comparing
capacitances of two air capacitors is ………
bridge.
(a) Schering (b) De Sauty
(c) Wien series (d) Wien parallel - Heaviside-Campbell Equal Ratio bridge is
used for measuring
(a) self-inductance in terms of mutual
inductance
(b) capacitance in terms of inductance
(c) dielectric loss of an imperfect capacitor
(d) phase angle of a coil
1.c 2. c 3. d 4. d 5. a 6. b 7. a