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ESE EE : Electromagnetic fields Champion Quiz 5

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Question 1

The open circuit and short circuit impendances of a line are 100

each. What is the characteristic impedance of the line ?

Question 2

Which one of the following is not the valid expression for magnetostatic field vector

Question 3

Which of the following is zero as applied to electromagnetic fields?

Question 4

Consider the following :
Lorentz force

where e,

and

are respectively the charge of the particle, velocity of the particle and flux density of uniform magnetic field.
Which one of the following statements is not correct?

Question 5

If a very flexible wire is laid out in the shape of a hairpin with its two ends secured, what shape will the wire tend to assume if a current is passed through it?

Question 6

The electric field intensity phasor of an EM wave in free space is

V/m. The angular frequency

, in radian per second , is

Question 7

If the load impedance is 100 ohm and input impedance is 25 ohm, then the characteristic impedance of the transmission line is

Question 8

Two loss-less resistive transmission lines each of characteristic impedance Z are connected as shown in the circuit below.If the maximum voltage on the two lines is the same and the power transmitted by line A is W₁, then what is the power transmitted by the line B?