WorksheetsUnit 3
Total questions: 13
Worksheet time: 10mins
A bridge circuit is used for the measurement of which of the following components?
Resistance, capacitance, and inductance
Diode, triode, and thyristor
Transistor, thermistor, and antenna
LED, op amp, and transducer
A simple bridge circuit consists of a network of __________
3 resistance arms
2 resistance arms
4 resistance arms
6 resistance arms
A bridge circuit uses which method of measurement?
comparison
differential
relative
absolute
Which principle operates a bridge circuit?
kirchhoff’s laws
partial indication
ampere’s rule
null indication
The accuracy of a bridge depends on the _________
voltage source
current source
bridge components
null indicator
When is the bridge circuit balanced?
When impedance is minimum
When no current flows through the galvanometer
When current flows through the opposite ends of the bridge circuit
When voltage is applied
D.C. bridges are used for _________
measurement of inductance
measurement of current
measurement of capacitance
measurement of resistance
What is used to characterize single port devices, multiport devices, etc?
power values
voltage values
impedance values
current values
A.C Bridge must be balanced for ________
power
magnitude and angle
angle
magnitude
The A.C bridges balance equations are:
Product of magnitude of opposite branch impedance are same & addition of phase angles of opposite branch impedance.
Addition of magnitude of opposite branch impedance are same & addition of phase angles of opposite branch impedance.
addition of magnitude of opposite branch impedance are same & product phase angles of opposite branch impedance.
Product of magnitude of opposite branch impedance are same & Product of phase angles of opposite branch impedance.
Phase angle is based on _______
power
impedance
detector
source
For inductive impedances, the phase angle is _______
exponential
zero
negative
positive
For capacitive impedances, the phase angle is ______
logarithmic
positive
negative
tangential
