Basic Electrical Mcqs


Q.  Which of the following are the passive elements?

a. Resistor
b. Bulb
c. Both
d. None of these


ANSWER: See Answer
 
When the element is not capable of delivering energy independently, are called as passive element. Both resistor and bulb are the passive elements and they can’t increase the energy level of a circuit
MCQs:  In a circuit a 33 Q resistor carries a current of 2 A. The voltage across the resistor is
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MCQs:  A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is___________?
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MCQs:  The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other ?
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MCQs:  Four wires of same material, the same cross-sectional area and the same length when connected in parallel give a resistance of 25 Q. If the same four wires are connected is series the effective resistance will be________?
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MCQs:  A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is_____________?
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MCQs:  Current velocity through a copper conductor is___________?
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MCQs:  Which of the following material has nearly zero temperature co-efficient of resistance_________?
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MCQs:  You have to replace 1500 Q resistor in radio. You have no 1500 Q resistor but have several 1000 Q ones which you would connect__________?
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MCQs:  Two resistors are said to be connected in series when___________?
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MCQs:  Which of the following statement is true both for a series and a parallel D. C. circuit?
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MCQs:  Which of the following materials has a negative temperature co-efficient of resistance?
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MCQs:  Ohm’s law is not applicable to____________?
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MCQs:  Which is the best conductor of electricity _______________?
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MCQs:  For which of the following ‘ampere second’ could be the unit ?
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MCQs:  All of the following are equivalent to watt except_____________?
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MCQs:  A resistance having rating 10 ohms, 10 W is likely to be a__________?
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MCQs:  Which one of the following does not have negative temperature co-efficient ____________?
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MCQs:  Varistors are______________?
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MCQs:  Insulating materials have the function of______________?
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MCQs:  Insulating materials have the function of___________?
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