Question
Identify the correct statement from the following.
✓
Answer
- While traversing in a closed loop, if positive pole of cell is encountered first, then the emf is positive.
According to sign convention while traversing a closed loop (in clockwise or anti-clockwise direction), if positive pole of the cell is encountered first then its emf is negative or else, it will be positive.
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
The expression for magnetic induction inside a solenoid of length $L$ carrying a current $l$ and having $N$ number of turns is
→Two capacitors $A$ and $B$ are connected in series with a battery as shown in the figure. When the switch $S$ is closed and the two capacitors get charged fully, then
→Find $x$ in the following nuclear reaction.
$\ce{{12}Mg^{24 }+ _2He^{4 }\rightarrow _{14}Si^x+ _0n^1}$
→$\ce{{12}Mg^{24 }+ _2He^{4 }\rightarrow _{14}Si^x+ _0n^1}$
If $V_{AB} = 4V$ in the given figure, then resistance $X$ will be
→Which of the following is responsible for the earth’s magnetic field?
To an observer on the earth the stars appear to twinkle. This can be ascribed to(a) The fact that stars do not emit light continuously(b) Frequent absorption of star light by their own atmosphere(c) Frequent absorption of star light by the earth's atmosphere(d) The refractive index fluctuations in the earth's atmosphere
A certain mass of Hydrogen is changed to Helium by the process of fusion. The mass defect in fusion reaction is 0.02866u. The energy liberated per u is (Given 1 u = 931MeV)
Assertion : Torque on the coil is the maximum, when coil is suspended in a radial magnetic field.
Reason : The torque tends to rotate the coil on its own axis.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
Reason : The torque tends to rotate the coil on its own axis.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
We use flint glass prism to disperse polychromatic light because light of different colours(a) Travel with same speed(b) Travel with same speed but deviate differently due to the shape of the prism(c) Have different anisotropic properties while travelling through the prism(d) Travel with different speeds
A non.monochromatic light is used in an experiment on photoelectric effect. The stopping potential$:$
→