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