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Electric Circuits

Electric Circuits
A rectangular magnet of magnetic moment M is cut into two pieces of same length. The magnetic moment of each piece will be

 2 M.
 M / L.
 M / 2.
 M.

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Electric Circuits
For ideal tank circuit what is the value of dynamic impedance?

 Both
None of these
 0
 ∞

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Electric Circuits
An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance.

 zero, infinite
 infinite, infinite
 infinite, zero
 zero, zero

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Electric Circuits
Which of following capacitors has relatively shorter shelf life?

 both (B) and (C) above.
 Paper.
 Electrolytic.
 Glass.

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Electric Circuits
For the network shown below when I = 0, V = 20 V and when R = 0, I = 10 A. If now R = 3 Ω what is the value of the current I?

 6 A.
 5 A.
 10 A.
 4 A.

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Electric Circuits
In RL series circuit R=2Ω and L=10mH and applied voltage is 10V DC. Then find the current in the network?

 0A
 10A
 1A
 5A

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