MCQ
In AC circuit, power is lost in only :
- ✓resistance
- Binductance
- Ccapacitance
- Dall of these
✓
Answer
Correct option: A.
resistance
A
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
A highly conducting ring of radius $R$ is perpendicular to and concentric with the axis of a long solenoid as shown in fig. The ring has a narrow gap of width $d$ in its circumference. The solenoid has cross sectional area $A$ and a uniform internal field of magnitude $B_0.$ Now beginning at $t=0,$ the solenoid current is steadily increased to so that the field magnitude at any time $t$ is given by $B(t)=B_0+\alpha t$ where $\alpha>0.$ Assuming that no charge can flow across the gap, the end of ring which has excess of positive charge and the magnitude of induced $\text{e.m.f.}$ in the ring are respectively
→The reaction $^2_1\text{H}$+$^2_1\text{H}$→$^3_2\text{H}$+$^1_0\text{n}$ is called:
→Which of the following statements is false?
Figure. shows two processes A and B on a system. Let $\Delta\text{Q}_1$ and $\Delta\text{Q}_2$ be the heat given to the system in processes A and B respectively. Then,
→- $\Delta\text{Q}_1>\Delta\text{Q}_2$
- $\Delta\text{Q}_1=\Delta\text{Q}_2$
- $\Delta\text{Q}_1<\Delta\text{Q}_2$
- $\Delta\text{Q}_1\le\Delta\text{Q}_2$
A closed vessel is half filled with water. There is a hole near the top of the vessel and air is pumped out from this hole.
-
The water level will rise up in the vessel.
-
The pressure at the surface of the water will decrease.
-
The force by the water on the bottom of the vessel will decrease.
-
The density of the liquid will decrease.
In the given circuit if point $C$ is connected to the earth and a potential of $+2000 V$ is given to the point $A,$ the potential at $B$ is
→A particle moves on a straight line with a uniform velocity. Its angular momentum:
- Is always zero.
- Is zero about a point on the straight line.
- Is not zero about a point away from the straight line.
- About any given point remains constant.
Which atom contains exactly $15$ neutrons?
→Value of $(\mu_{0}\in_{0})^{-1/2}$ is :
→When the electrical conductivity of a semi- conductor is due to the breaking of its covalent bonds, then the semiconductor is said to be (a) Donar (b) Acceptor(c) Intrinsic(d) Extrinsic