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WorksheetsInductance and Capacitance
Total questions: 17
Worksheet time: 9mins
The concept of a magnetic field being formed around a conductor when current flows through it is called __________.
capacitance
electromagnetism
flux
All of the above
None of the above
Which of the following is not an example of an electromagnetic device?
Solenoid
Relay
Resistor
Motor
Inductance is measured in __________.
Ohms
Farads
henrys
RPMs
__________ affects a DC circuit only when the current is first turned on, turned off, or when there is a charge in the load resistance.
capacitance
Inductance
A time delay
A relay
The resistance provided by an inductor in an AC circuit is called __________.
induced resistance
inductive reactance
electromotive force
All of the above
None of the above
Which of the following is the correct formula for calculating total series inductance?
LT = L1 + L2 + L3...
LT = L1 * L2 * L3...
LT = (1/L1) + (1/L2) + (1/L3) ..
All of the above
None of the above
Which of the following is the correct formula for calculating total parallel inductive reactance in a parallel circuit?
XLT = XL1 + XL2 + XL3 ...
XLT = XL1 * XL2 * XL3...
XLT = 1/[(1/XL1) + (1/XL2) + (1/XL3) ... ]
XLT = (1/XL1) + (1/XL2) + (1/XL3) ...
Capacitance is measured in __________.
Farads
henrys
Ohms
Volts
The energy stored by a capacitor is called a(n) __________.
induced voltage
electrostatic charge
voltage spike
All of the above
None of the above
Which of the following is a type of capacitor?
Electrolytic
Nonpolarized
Variable
All of the above
None of the above
One of the effects a capacitor has in a DC circuit is that it will __________.
charge to a voltage equal to the source voltage
continue to charge until the source is completely drained
act like an open until it is fully charged
All of the above
None of the above
Which of the following is the total series capacitive reactance formula?
XCT = XC1 * XC2 * XC3....
XCT = XC1 - XC2 - XC3...
XCT = XC1 + XC2 + XC3...
XCT = 1/[(1/XC1) + (1/XC2) + (1/XC3) ...]
The formula for calculating total parallel capacitance is __________
CT= C1 + C2 + C3...
(1/CT) = (1/C1) + (I/C2) + (1/C3)
CT= C1 * C2 * C3...
CT = C1 - C2 - C3 ....
A common inductor found in fluorescent light fixtures is a __________
starter
cathode
ballast
switcher
A time-delay relay that uses an RC timing circuit is called a(n)_________
solid-state, time-delay relay
adjustable relay
dashpot time-delay relay
motor-driven, time-delay relay
In an electric DC power supply, a capacitor is commonly used to__________
block the current flow
increase the current flow
filter out the unwanted AC voltage
decrease the voltage
A coil that opposes any change in current flow is called a(n) __________
inductor
capacitor
transducer
oscillator
