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If the current in a coil having a constant inductance of L henrys grows at a uniform rate, what is the value of the average current?
The average current is the average of the current which flows in the inductor. Hence it is I/2.
What is the power in the magnetic field if the current in a coil has a constant inductance of L henrys grows at a uniform rate?
The average current is I/2. The e.m.f. induced in the coil is LI/t V. Power= VI, hence the average power= I/2*LI/t.
What is the energy stored in the magnetic field if the current in a coil has a constant inductance of L henrys grows at a uniform rate?
The average current is I/2. The e.m.f. induced in the coil is LI/t V. Power= VI, hence the average power= I/2*LI/t. The total energy stored= power*t= LI^{2}/2.
Find the average current in an inductor if the total current in the inductor is 26A.
Average current= I/2.
Substituting the value of I from the equation, average current= 13A.
Calculate the emf induced in an inductor if the inductance is 10H and the current is 2A in 4s?
The expression for emf in an inductive circuit is:
emf = LdI/dt
Substituting the values from the given question, we get emf = 5V.
Calculate the value of stored energy in an inductor if the value of inductance is 20H and 4A of current flows through it.
The expression for energy in an inductor is:
W= LI^{2}/2t
Substituting the values from the given question, we get W= 160J.
Calculate the emf induced in an inductor if the inductance is 10H and the current is 2A in 4s.
The expression for emf in an inductive circuit is:
emf= LI/2t
Substituting the values from the given question, we get emf= 2.5V.
Calculate the value of emf in an inductor if the value of inductance is 15H and an average current of 5A flows through it in 10s.
The expression for emf in an inductive circuit is:
emf= LI/2t, where I/2 is the average current.
Substituting the values from the given question, we get emf= 2.5V.
Calculate the current in an inductor if the energy stored is 160J and the inductance is 20H.
The expression for energy in an inductor is:
W= LI^{2}/2t
Substituting the values from the given question, we get I=4A.
Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.
The expression for power in an inductive circuit is:
P= LI^{2}/2
Substituting the values from the given question, we get t=4s.
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