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

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

41) Distribution transformer has maximum efficiency around

Answer is:

50% load

42) The ratio of collector current to emitter current of a transistor is 0.99. What is the ratio of collector current to base current?

Answer is:

99

43) Internal resistance of a galvanometer is 1 Ohm. A resistor ( R) and a voltage source of 10V are connected in series to the galvanometer to make an ohm meter. Full scale deflection of the galvanometer corresponds to 1 mA. What is the value of the resistance

Answer is:

9999 Ohm

44) What is the peak to peak voltage of 250V AC?

Answer is:

707V

45) Equation of voltage from source is v=3sin(20t)+4sin(30t). What is the power dissipated if this voltage is applied across a 10 Ohm resistor.

Answer is:

1.25 W

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