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__First year Engineering Basic Electrical Engineering Objective Questions__

[1] The coulomb is a unit of:(a) Energy

(b) Voltage

(c) Power

(d) Quantity of electricity

[2] A charge of 240 C is transferred in 2 minutes. The current flowing is:

(a) 480A

(b) 120A

(c) 2A

(d) 8A

[3] A resistance of 50 kΩ has a conductance of:

(a) 20S

(b) 0.02S

(c) 0.02 mS

(d) 20 kS

[4] Which of the following statements is incorrect?

(a) 1N = 1 kgm/s

^{2}

(b) 1V = 1 J/C

(c) 30mA = 0.03A

(d) 1 J = 1N/m

[5] The power dissipated by a resistor of 10 ohm when a current of 2A passes through it is:

(a) 0.4W

(b) 20W

(c) 40W

(d) 200W

[6] A mass of 1200g is accelerated at 200 cm/s

(a) 2.4N

(b) 2400N

(c) 240 kN

(d) 0.24N

[7] A current of 2A flows for 10 hour through a 100 ohm resistor. The energy consumed by the resistor is:

(a) 0.5 kWh

(b) 4 kWh

(c) 2 kWh

(d) 0.02 kWh

[8] The unit of quantity of electricity is the:

(a) volt

(b) coulomb

(c) ohm

(d) joule

[9] Electromotive force is provided by:

(a) Resistance’s

(b) A conducting path

(c) An electric current

(d) An electrical supply source

[10] The unit of current is the:

(a) Volt

(b) Coulomb

(c) Joule

(d) Ampere

[11] In order that work may be done:

(a) Two wires are necessary

(b) The circuit must have a switch

(c) Coal must be burnt

(d) A supply of energy is required

[12] The ohm is the unit of:

(a) Charge

(b) Resistance

(c) Power

(d) Current

[13] The unit of resistivity is:

(a) ohms

(b) ohm millimetre

(c) ohm metre

(d) ohm/metre

[14] Voltage drop is the:

(a) Maximum potential

(b) Difference in potential between two points

(c) Voltage at the end of a circuit

(d) Voltage produced by a source

[15] A 240V, 60W lamp has a working resistance of:

(a) 1400 ohm

(b) 60 ohm

(c) 960 ohm

(d) 325 ohm

[1] Units

Energy - Watt-hr

Voltage - volts

Power - watts

[2] Current = Charge in coulomb/ Time in sec

[3] Conductance = 1/Resistance

[15] P = V

^{2 }by a force. The value of the force required is:(a) 2.4N

(b) 2400N

(c) 240 kN

(d) 0.24N

[7] A current of 2A flows for 10 hour through a 100 ohm resistor. The energy consumed by the resistor is:

(a) 0.5 kWh

(b) 4 kWh

(c) 2 kWh

(d) 0.02 kWh

[8] The unit of quantity of electricity is the:

(a) volt

(b) coulomb

(c) ohm

(d) joule

[9] Electromotive force is provided by:

(a) Resistance’s

(b) A conducting path

(c) An electric current

(d) An electrical supply source

[10] The unit of current is the:

(a) Volt

(b) Coulomb

(c) Joule

(d) Ampere

[11] In order that work may be done:

(a) Two wires are necessary

(b) The circuit must have a switch

(c) Coal must be burnt

(d) A supply of energy is required

[12] The ohm is the unit of:

(a) Charge

(b) Resistance

(c) Power

(d) Current

[13] The unit of resistivity is:

(a) ohms

(b) ohm millimetre

(c) ohm metre

(d) ohm/metre

[14] Voltage drop is the:

(a) Maximum potential

(b) Difference in potential between two points

(c) Voltage at the end of a circuit

(d) Voltage produced by a source

[15] A 240V, 60W lamp has a working resistance of:

(a) 1400 ohm

(b) 60 ohm

(c) 960 ohm

(d) 325 ohm

**Solution Hint:**[1] Units

Energy - Watt-hr

Voltage - volts

Power - watts

[2] Current = Charge in coulomb/ Time in sec

[3] Conductance = 1/Resistance

[15] P = V

^{2}/R*Thanks for reading..*
very useful thanks

ReplyDeletevery useful sir..thank u very much

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