Question
Define potential difference and write its unit.
✓
Answer
The potential difference between two points in an electric field is defined as the work done in moving a unit positive test charge from one point to another against the field. Its unit in S.I. system is volt (V) or J/C.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Write the direction $\otimes$ and $\odot$ of magnetic field produced at point $P$ in the given figure
→On what does the color dispersion power of a prism depend?
The drift speed is defined as $\text{v}_\text{d}=\frac{\Delta\text{l}}{\Delta\text{t}}$ where $\Delta\text{l}$ is the distance drifted in a long time $\Delta\text{t}.$ Why don't we define the drift speed as the limit of $\frac{\Delta\text{l}}{\Delta\text{t}}\ \text{as}\ \Delta\text{t}\rightarrow0?$
→Answer the following questions, which help you understand the difference between Thomson’s model and Rutherford’s model better.
Is the probability of backward scattering (i.e., scattering of α-particles at angles greater than 90°) predicted by Thomson’s model much less, about the same, or much greater than that predicted by Rutherford’s model?
Is the probability of backward scattering (i.e., scattering of α-particles at angles greater than 90°) predicted by Thomson’s model much less, about the same, or much greater than that predicted by Rutherford’s model?
For same value of angle of incidence, the angles of refraction in three media are 15°, 20° and 25° respectively. In which medium, the velocity of light will be minimum?
What is the magnitude of $K$ in the equation $d B=\frac{ Kidl \sin \theta}{r^2}$ in C.G.S. system?
→What is the effect on the resistance due to increase in the temperature?
Sometimes it is said that "heat is developed" in a resistance when there is an electric current in it. Recall that heat is defined as the energy being transferred due to temperature difference. Is the statement in quotes technically correct?
Can X-rays be polarized?
Show variation of resistivity of Si with temperature in a graph.