Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Current Electricity question

2019 · 11 Jan · Shift 1 · Q52
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Current Electricity
  5. /2019 · 11 Jan · Shift 1 · Q52

Current Electricity question

2019 · 11 Jan · Shift 1 · Q52

JEE MainPhysicsCurrent ElectricityMCQ+4 / −1
The resistance of the meter bridge AB in given figure is 4 Ω\OmegaΩ. With a cell of emf ε\varepsilonε= 0.5 V and rheostat resistance Rh = 2 Ω\OmegaΩ the null point is obtained at some point J. When the cell is replaced by another one of emf ε\varepsilonε=ε\varepsilonε 2 the same null point J is found for Rh = 6 Ω\OmegaΩ. The emf ε\varepsilonε 2 is, : JEE Main 2019 (Online) 11th January Morning Slot Physics - Current Electricity Question 270 English
  1. A
    0.3 V
  2. B
    0.6 V
  3. C
    0.5 V
  4. D
    0.4 V
PreviousNext

More from Current Electricity

  • Two equal resistances when connected in series to a battery, consume electric power of 60 W. If these resistances are now connected in parallel combination to the same battery, the electric power consumed will be :2019 · MCQ
  • In the experimental set up of metre bridge shown in the figure, the null point is obtained at a distance of 40 cm from A. If a 10 Ω resistor is connected in series with R1, the null point shifts by 10 cm. The resistance that should… Includes diagram2019 · MCQ
  • In the circuit shown, the potential difference between A and B is : Includes diagram2019 · MCQ
  • A galvanometer having a resistance of 20 Ω and 30 divisions on both sides has figure of merit 0.005 ampere/division. The resistance that should be connected in series such that it can be used as a voltmeter upto 15 volt, is:2019 · MCQ
  • To verify Ohm's law, a student connects the voltmeter across the battery as, shown in the figure. The measured voltage is plotted as a function of the current, and the following graph is obtained : If V0 is almost zero, identify the… Includes diagram2019 · MCQ
  • A galvanometer of resistance 100 Ω has 50 divisions on its scale and has sensitivitv of 20 μ A/division. It is to be converted to a voltmeter with three ranges of 0-2V, 0-10 V and 0-20 V. The appropriate circuit to do so is2019 · MCQ
  • The resistive network shown below is connected to a D.C. source of 16 V. The power consumed by the network is 4 Watt. The value of R is: Includes diagram2019 · MCQ
  • A moving coil galvanometer, having a resistance G, produces full scale deflection when a current Ig flows through it. This galvanometer can be converted into (i) an ammeter of range 0 to I0(I0 > Ig) by connecting a shunt resistance RA…2019 · MCQ