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WorksheetsInductance
Total questions: 10
Worksheet time: 6mins
Choose the situation in which the magnitude of EMF generated by the inductor would be maximum.
Current is increasing rapidly in the circuit.
A constant small current is flowing in the circuit.
Current is decreasing slowly in the circuit.
A constant large current is flowing in the circuit.
Which of these best describes the effect of the inductor in the circuit after the switch is closed?
Behaves like a connecting wire and does not affect the flow of current.
Initially opposes the flow of current, later behaves like a connecting wire
Permanently blocks the flow of current in the circuit.
Provides constant opposition to the flow of current.
The fact than an inductor opposes any change in current is true of:
AC signals only
DC signals only
AC and DC signals
None
Choose factor can change the value of inductance
Value of current
Battery or power supply
Number of turns in the coil
Mutual Inductance is
Which statement is TRUE about Mutual inductance?
The first and second coil does not have power supply
The second coil has more turns than the first coil
The second coil does not have any connection to power supply
The first coil will not induced an emf
What is purpose of inductance in circuit
The way to reduce energy lost in transmission cable is
The _______ the number of turn of primary coil than secondary, the ______ the value of current in secondary coil than primary.
greater, smaller
greater, greater
smaller, smaller
smaller, greater
Calculate potential difference in the secondary coil based on the information given below.
Vp = 240 V
Np = 20
Ns = 125
Vs ?
(a)
