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WorksheetsBE topic 2
Total questions: 10
Worksheet time: 5mins
The internal resistance of an ideal voltage source is:
Zero
Infinity
Very small but not zero
Depends on load connected
An ideal current source has an internal resistance of:
Zero
Infinity
Equal to load resistance
Cannot be defined
A real voltage source can be modeled as:
An ideal voltage source in series with resistance
An ideal voltage source in parallel with resistance
Only a resistance
Current source in parallel with resistance
RMS value of a sinusoidal voltage with peak value Vm is:
Vm
Vm/2
2Vm
Vm∕√2
A practical current source is represented by:
An ideal current source in series with a resistance
An ideal current source in parallel with a resistance
An ideal voltage source in parallel with resistance
A dependent voltage source
The unit of impedance is:
Siemens
Henry
Ohm
Farad
The expression for impedance of an inductor L is:
jωL
1/jωL
R
1/ωL
Impedance of a capacitor C is:
jωC
1/jωC
R
1/ωC
Impedance of a resistor R in AC circuit is:
jωL
R
1/LC
1/jωC
Look at this & say What type of source
Current Source
Voltage Source
Dependent current source
Dependent voltage source
