Download App

Electrostatic Potential and Capacitance — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectrostatic Potential and Capacitance1 Mark
Question
The potential difference between two points is 20 volts. How much work will be required to move $4 \times 10^{-4}$ coulombs charge from one point to another?
✓

Answer

Work $(W)=$ Charge $(q)$ $\times$ potential difference (V)
$=4 \times 10^{-4} \times 20=8 \times 10^{-3}$ joules

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Electrostatic Potential and Capacitance→Electrostatic Potential and Capacitance — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Define the term 'wattless current'.
→
A capacitor has capacitance C. Is this information sufficient to know what maximum charge the capacitor can contain? If yes, what is this charges? If no, what other information is needed?
→
Under what condition is terminal voltage at the ends of a secondary cell is equal to its electromotive force?
→
Frequency of oscillation of electric field vector of any electromagnetic wave is $5 \times 10^{14} Hz$. What is the frequency of oscillation of corresponding magnetic field? To which part of electromagnetic spectrum is it associated?
→
When a dielectric slab is gradually inserted between the plates of an isolated parallel-plate capacitor, the energy of the system decreases. What can you conclude about the force on the slab exerted by the electric field?
→
The magnetic moment vectors $\mu_\text{s}$ and $\mu_\text{l}$ associated with the intrinsic spin angular momentum S and orbital angular momentum l, respectively, of an electron are predicted by quantum theory (and verified experimentally to a high accuracy) to be given by:
$\mu_\text{s}=-(\text{e}/\text{m})\text{S}.$
$\mu_\text{l}=-(\text{e}/2\text{m})\text{l}.$
Which of these relations is in accordance with the result expected classically? Outline the derivation of the classical result.
→
Give the logic symbol of NOR gate.
→
A particle having charge $q$ is moving with a velocity $\vec{v}$ in a magnetic field $\vec{B}$. What is the magnitude of force acting on it?
→
A small creature moves with constant speed in a vertical circle on a bright day. Does its shadow formed by the sun on a horizontal plane move in a simple harmonic motion?
→
What is the magnitude of the torque and also give its direction.
→