All MCQs for Competitive Exams
MCQSAll MCQs for Competitive Exams
Practice with answers, explanations, and exam-focused revision notes.
1652 MCQs
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Topic Notes: Competitive Exams
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Practice MCQs for CSS, PMS, FPSC, PPSC, NTS and Pakistan competitive exam preparation. Use topic-wise questions, answers, and explanations to revise quickly and improve exam accuracy.
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61
What is the typical range of resistivity for electrical insulators?
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62
Which of the following statements regarding the limitations or definition of Ohm's Law is incorrect?
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63
How does the electric current behave when multiple resistors are connected in a series configuration within a circuit?
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64
According to Ohm's Law, if the resistance of a circuit is reduced to half while the voltage remains constant, what happens to the current?
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65
Which scientist established the fundamental relationship between potential difference (V) and electric current (I) in a conductor?
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66
In a series circuit with a constant voltage source, how does the total current change as additional lamps are connected in series?
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67
Calculate the equivalent resistance of a circuit containing two 10Ω resistors in parallel, which are then connected in series with a third 10Ω resistor.
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68
According to Ohm's Law, how is the potential difference (V) mathematically related to current (I) and resistance (R)?
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69
How does the voltage across individual resistors compare when they are connected in a parallel configuration?
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70
Which material is commonly utilized as a heating element in electrical appliances due to its high resistivity?
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