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

2024 · 29 Jan · Shift 1 · Q67
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Current Electricity
  5. /2024 · 29 Jan · Shift 1 · Q67

Current Electricity question

2024 · 29 Jan · Shift 1 · Q67

JEE MainPhysicsCurrent ElectricityMCQ+4 / −1
A galvanometer having coil resistance 10Ω10 \Omega10Ω shows a full scale deflection for a current of 3 mA3 \mathrm{~mA}3 mA. For it to measure a current of 8 A8 \mathrm{~A}8 A, the value of the shunt should be:
  1. A
    3.75×10−3Ω3.75 \times 10^{-3} \Omega3.75×10−3Ω
  2. B
    3×10−3Ω3 \times 10^{-3} \Omega3×10−3Ω
  3. C
    4.85×10−3Ω4.85 \times 10^{-3} \Omega4.85×10−3Ω
  4. D
    2.75×10−3Ω2.75 \times 10^{-3} \Omega2.75×10−3Ω
PreviousNext

More from Current Electricity

  • The electric current through a wire varies with time as I=I0​+βt, where I0​=20 A and β=3 A/s. The amount of electric charge crossed through a section of the wire in 20 s is :2024 · MCQ
  • In the given circuit, the current in resistance R 3​ is : Includes diagram2024 · MCQ
  • In the given circuit, the current flowing through the resistance 20Ω is 0.3 A, while the ammeter reads 0.9 A. The value of R1​ is ​Ω. Includes diagram2024 · Numerical
  • A potential divider circuit is shown in figure. The output voltage V 0​ is : Includes diagram2024 · MCQ
  • An electric toaster has resistance of 60Ω at room temperature (27∘C). The toaster is connected to a 220 V supply. If the current flowing through it reaches 2.75 A, the…2024 · MCQ
  • Two cells are connected in opposition as shown. Cell E1​ is of 8 V emf and 2Ω internal resistance; the cell E2​ is of 2 V emf and 4Ω internal resistance. The terminal potential… Includes diagram2024 · Numerical
  • When a potential difference V is applied across a wire of resistance R, it dissipates energy at a rate W. If the wire is cut into two halves and these halves are connected mutually parallel across the same supply, the energy…2024 · MCQ
  • Two resistance of 100Ω and 200Ω are connected in series with a battery of 4 V and negligible internal resistance. A voltmeter is used to measure voltage across 100Ω resistance, which gives reading as 1 V…2024 · Numerical