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ISRO Technician-B
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ISRO Technician-B Electrician 2019
14

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

14) Power factor of RC circuit is

Zero

Unity

Leading

Lagging

Answer is:

Leading

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

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Related ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

15) Resistance of a copper wire is R. Four such wires with the same cross sectional area, but twice the length are connected in parallel, the net resistance is

R

R/2

R/4

R/8

Answer is:

R/2

16) Resistance of a galvanometer is 0.5 Ohm and full scale deflection corresponds to 10 mA. What is the shunt resistor required to increase the range of the instrument to 1 A.

(70/99) Ohms

(6/990) Ohms

(40/99) Ohms

(5/990) Ohms

Answer is:

(5/990) Ohms

17) Temperature coefficient of resistance of a material is 0.005 Ohm/Degree centigrade. At 20 Degree centigrade, the resistance of a wire made up of this material is 1 Ohm. At what temperature the resistance will become 2 Ohm.

200 Degree Centigrade

220 Degree Centigrade

180 Degree Centigrade

None of these

Answer is:

220 Degree Centigrade

18) Three 1.5 V cells each having internal resistance 10 Ohm are connected to this battery. What is the current through this circuit?

0.3 A

0.15 A

0.1 A

None of the above

Answer is:

0.1 A

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

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