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Chapter 1 D.C. FUNDAMENTALS 1. OHMโ€™S LAW AND ELECTRIC CURRENT. MCQs

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1. . The resistance of a conductor is calculated by:





2. . The law of resistance is defined as:





3. . The resistance of the material depends on:





4. . The resistivity of a wire depends on:





5. . The SI unit of electrical resistance is:





6. . The inverse quantity of resistance is called:





7. . If resistance decreases, then current will:





8. . Current in series circuit will:





9. . Voltage in parallel circuit will:





10. . In parallel circuits:





11. . In which circuit, the total resistance is greater than the largest resistance in the circuit:





12. . Two resistors of 4 and 6 ohms are connected in series, the total resistance is:





13. . When some different valued resistance are connected in series, the voltage drop across each of the resistors is:





14. . In which circuit, the total resistance is smaller than the smallest resistance in the circuit:





15. . Two resistances R1 and R2 are connected in parallel, the formula for the total resistance is:





16. . The rated current for a 100W, 220V lamp is:





17. . Two lamps of the same rating connected in series will give light:





18. . Two lamps of the same rating connected in parallel will give light:





19. . Which of the following is not an expression of power:





20. . A 250V bulb passes a current of 0.3A. Calculate the power in the lamp:





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