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Resistors
Test Description: Resistances play an important roles in manufacturing electric appliances
Instructions: Answer all questions to get your test result.
1) One of the inscriptions Carried by the lamp is 100Watt, it means :
A
Rated voltage of normal functioning of lamp
B
Rated power consumed by the lamp
C
Rated Energy consumed by lamp
D
Rated current of normal functioning of lamp
2) The unit of the power of a resistor in SI unit Is :
A
Ampere
B
Volt
C
Joule
D
Watt
3) The Multimeter uses to measure directly the resistance of a resistor is :
A
Ohmmeter
B
Voltmeter
C
Ammeter
D
All the above choices
4) The Resistance of the equivalent resistor of grouping two resistors in parallel is given by
A
Re = (R1 + R2 )/R1 x R 2
B
1/Re = 1/R1 + 1/R2
C
Re = R1 x R2
D
Re = R1 + R2
5) The characteristic Current – voltage of a resistor is :
A
Straight line passing through the origin
B
Ascending Straight line cuts Y - axis
C
Semi circle
D
Descending straight line cuts x - axis
6) The slope of the characteristic Current – Voltage of a resistor is the :
A
Ratio of current to voltage
B
Multiplication of current and voltage
C
Ratio of voltage to current
D
None of the above choices
7) The value 1 KΩ
A
10 Ω
B
1Ω000
C
1 Ω
D
100Ω
8) The ohmmeter uses to measure the resistance of aresistor by connected it by :
A
None of the above choices
B
Series
C
Mixed connection
D
Parallel
9) When current of 2A is crossed resistor submitted to 10V voltage then the value of resistor is :
A
5 ohm
B
10 ohm
C
None of the above choices
D
0.2 ohm
10) The value of equivalent resistance of R1=3Ω R2 = 6Ω connected in Parallel is :
A
2 Ω
B
18 Ω
C
9 Ω
D
3 Ω
*select an answer for all questions
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