Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Alternating Current question

2011 · Q91
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Physics
  4. /Alternating Current
  5. /2011 · Q91

Alternating Current question

2011 · Q91

NEETPhysicsAlternating CurrentMCQ+4 / −1
The r.m.s. value of potential difference V shown in the figure is

AIPMT 2011 Mains Physics - Alternating Current Question 47 English
  1. A
    V03{{{V_0}} \over {\sqrt 3 }}3​V0​​
  2. B
    V0
  3. C
    V02{{{V_0}} \over {\sqrt 2 }}2​V0​​
  4. D
    V02{{{V_0}} \over 2}2V0​​
View written solutionFree

Correct answer: C

Vrms = T2(V0)2+0T=V02\sqrt {{{{T \over 2}{{\left( {{V_0}} \right)}^2} + 0} \over T}} = {{{V_0}} \over {\sqrt 2 }}T2T​(V0​)2+0​​=2​V0​​

PreviousNext

More from Alternating Current

  • An ac voltage is applied to a resistance R and an inductor L in series. If R and the inductive reactance are both equal to 3 Ω, the phase difference between the applied voltage and the current in the circuit is2011 · MCQ
  • In the ac circuit an alternating voltage e = 2002​sin100t volts is connected to a capacitor of capacity 1 μF. The r.m.s. value of the current in the circuit is2011 · MCQ
  • A condenser of capacity C is charged to a potential difference of V1. The plates of th condenser are then connected to an ideal inductor of inductance L. The current through the inductor when the potential difference across the condenser…2010 · MCQ
  • In the given circuit the reading of voltmeter V1 and V2 are 300 volts each. The reading of the voltmeter V3 and ammeter A are respectively Includes diagram2010 · MCQ
  • A 220 volt input is supplied to a transformer. The output circuit draws a current of 2.0 ampere at 440 volts. If the efficiency of the transformer is 80%, the current drwn by the primary windings of the transformer is2010 · MCQ
  • Power dissipated in an LCR series circuit connected to an A.C. source of emf ε is2009 · MCQ
  • In an a.c. circuit the e.m.f. (ε) and the current (i) at any instant are given respectively by ε = E0sinωt, i = I0sin(ωt − ϕ) The average power in the circuit over one cycle of a.c. is2008 · MCQ
  • A transformer is used to light a 100 W and 110 V lamp from a 220 V mains. If the main current is 0.5 amp, the efficiency of the transformer is approximately2007 · MCQ