# If a conductor of cross-section A and carrying a current is oriental along the y-axis in a magnetic field the force density exerted on the conductor is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The impedance Z(s) of the one-port network shown in the figure is given by

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# If the electric field and € = 4€0 then the displacement current crossing an area of 0.1m2 at t=0 will be

1.  zero

2.  0.04€0

3.  0.4€0

4.  4€0

4

0.04€0

Explanation :
No Explanation available for this question

# A magnetic field) exists at a point. If a test charge moving with a velocity, experiences no forces at a certain point, the electric field at that point will be

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The value of ΦI along a circle of radius 2 units is

1.  zero

2.  2π

3.  4π

4.  8π

4

zero

Explanation :
No Explanation available for this question

# . If the vector and are conservative,then

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The expression for B, given that in free space E = 15 cos(6π x 108t - 2πz) ix V/m is

1.  5 ×10-8 cos(6π x108 t - 2πz) iy

2.   -90×108 sin(6x 108 t - 2z) ix

3.  -45×108 sin(6x 108 t - 2z) iy

4.  5 ×108 [cos(6px108 t-2pz)-sin(6π x108 t - 2πz)iz]

4

5 ×10-8 cos(6π x108 t - 2πz) iy

Explanation :
No Explanation available for this question

# An air filled rectangular waveguide has dimensions 6 cm, 4 cm. The cut off frequency for TE10 is

1.  2.5 GHz

2.  25 GHz

3.  25 MHz

4.  5 GHz

4

2.5 GHz

Explanation :
No Explanation available for this question

# The inconsistency of continuity equation for time varying field was corrected by Maxwell and the correction applied was

1.

2.  Gauss’s law, J

3.

4.

4

Explanation :
No Explanation available for this question

# Sparking occurs when a load is switched off because the circuit has high

1.  inductance

2.  capacitance

3.  resistance

4.  none of the above

4