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The frequency of an alternating voltage is 50 cycles per second and its amplitude is 120 V. Then the r.m.s. value of voltage is
Options
(a) 84.8 V
(b) 101.3 V
(c) 70.7 V
(d) 56.5 V
Correct Answer:
84.8 V
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The work function for metals A,B abd C are respectively 1.92 eV,2.0 eV and 5 eV.
- The shortest wavelength in Lyman series is 91.2 nm. The largest wavelength
- If the dimensions of a physical quantity are givenby Mᵃ Lᵇ Tᶜ, then the physical
- Two bodies of masses m and 4 m are moving with equal K.E. The ratio of their linear
- The young’s modulus of steel is twice that of brass. Two wires of same length
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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