Different computers are connected to a LAN by a cable and a

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DGVCL Exam Paper (11-12-2011)

Different computers are connected to a LAN by a cable and a

Interface card

Modem

Special wires

Telephone line

Interface card

Modem

Special wires

Telephone line

Which motor is used to start heavy loads?

Series motor

Shunt motor

Differentially compounded motor

Cumulatively compounded motor

Series motor

Shunt motor

Differentially compounded motor

Cumulatively compounded motor

Torque in d.c motor = k* φ * Ia
In series motor φ α Ia
Tα I²
starting torque of dc series motor is high

DGVCL Exam Paper (11-12-2011)

The mutual inductance between two unity coupled coils of 9 H and 4 H is

13 H

2.2 H

36 H

6 H

13 H

2.2 H

36 H

6 H

DGVCL Exam Paper (11-12-2011)

An AC series circuit has R = 6 Ω, XL = 20 Ω and Xc = 12 Ω. The ciruit power factor will be

0.6 lagging

0.5 leading

0.6 leading

0.8 lagging

0.6 lagging

0.5 leading

0.6 leading

0.8 lagging

DGVCL Exam Paper (11-12-2011)

Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct?

The force increases when the distance between the conductors is increased

There is a repelling force between the conductors

There is an attracting force between the conductors

The force increases when the distance between the conductors is decreased

The force increases when the distance between the conductors is increased

There is a repelling force between the conductors

There is an attracting force between the conductors

The force increases when the distance between the conductors is decreased

DGVCL Exam Paper (11-12-2011)

The form factor in AC means the ration of

R.M.S. value to average value

Peak value to average value

R.M.S. value to peak value

Peak value to r.m.s value

R.M.S. value to average value

Peak value to average value

R.M.S. value to peak value

Peak value to r.m.s value

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Different computers are connected to a LAN by a cable and a

Which motor is used to start heavy loads?

The mutual inductance between two unity coupled coils of 9 H and 4 H is

An AC series circuit has R = 6 Ω, XL = 20 Ω and Xc = 12 Ω. The ciruit power factor will be

Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct?

The form factor in AC means the ration of

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Android

Apple

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