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SSC JE 2019-20 Technical Quiz 99

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Question 1

The hall coefficient of a N-type semiconductor is 170 cm3/coulomb. If the Resistivity of the semiconductor is 0.35 Ω cm. Calculate the mobility of electron.

Question 2

For a single-phase full wave rectifier having a turn ratio 10: 1. If the input at the primary of the transformer is connected to 220 V, 50 Hz A.C supply. What will be average output voltage of full wave rectifier?

Question 3

A coil having resistance of 30Ω in series with an inductance of 5mH is connected to 200V, 50 Hz supply. What will be the equivalent current & power factor of the circuit?

Question 4

Find out the value of resistance R1, So that the maximum power transferred to load resistance of 2Ω.

Question 5

Determine the required value of series resistance (in Ohms) to convert a galvanometer into a voltmeter of reading 0.4-volt range when the resistance of the galvanometer is 40 ohms and the value of current for full-scale deflection is 4 mA.

Question 6

The main consideration in designing feeders is

Question 7

What will be the value of capacitance (in micro-Farad) of a capacitor when the potential difference between the terminals of the capacitor is 40 V and the charge stored in the capacitor is 8 mC?

Question 8

Determine the percentage (in %) of maximum power delivered to the load resistance, when RL = 3RTH.

Question 9

What will be the value of current (in A) through the 50  resistor of the given circuit diagram?

Question 10

Determine Thevenin’s equivalent resistance (in Ohms) and voltage (in V) respectively across terminal ‘a’ and ‘b’ for the given electrical circuit.

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Jun 11ESE & GATE EE