Three capacitors each of capacitance 18μF are connected in series. Calculate the effective capacitance of the capacitors
A. 54.00μF B. 18.00μF C. 6.00μF D. 0.17μF Correct Answer: Option C C. 6.00μF Explanation 1/c=1/18+1/18+1/18 = 3/18 c = 6μFWhich of the following items can be used to compare the relative magnitudes of electric charges on two bodies?
A. ebonite rod B. gold leaf electroscope C. proof plane D. the electrophorus Correct Answer: Option B B. gold leaf electroscopeWhich of the following actions will not cause an increase in the frequency of a vibrating string?
A. increasing the tension of the string B. decrease the mass per unit length of the string C. decrease the length of the string D. increasing the cross-sectional area of the string Correct Answer: Option D D. increasing the cross-sectional area of the...Which of the following instruments is not a wind instrument?
A. clarinet B. saxophone C. trumpet D. xylophone Correct Answer: Option D D. xylophoneProducts
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