MCQ
Dynamo is a device for converting
- AElectrical energy into mechanical energy
- ✓Mechanical energy into electrical energy
- CChemical energy into mechanical energy
- DMechanical energy into chemical energy
✓
Answer
Correct option: B.
Mechanical energy into electrical energy
b
A dynamo converts mechanical energy into electrical energy.
A dynamo converts mechanical energy into electrical energy.
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
For a cell of $e.m.f.$ $2\,V$, a balance is obtained for $50\, cm$ of the potentiometer wire. If the cell is shunted by a $2\,\Omega $ resistor and the balance is obtained across $40\, cm$ of the wire, then the internal resistance of the cell is ............. $\Omega $
→A Solid sphare of radius $R$ has a charge $Q$ distributed in its Volume with a charge density $P=K r^a$ Where $K$ and a are constants and $r$ is the distance from its centre from its centre. if the electric filed at $r=\frac{R}{2}$ is $\frac{1}{8}$ times that at $r=R$, the value of $a$ is.
→Two current elements $P$ and $Q$ have current voltage characteristics as shown below :
→Which of the graphs given below represents current voltage characteristics when $P$ and $Q$ are in series.
Green light of wavelength $5460 \mathring A$ is incident on an air-glass interface. If the refractive index of glass is $1.5$, the wave length of light in glass would be ........ $\mathring A$
→$\left( c =3 \times 10^8 ms ^{-1}\right)$
A wire of magnetic moment $M$ is moulded according to figure, then magnetic moment becomes
→Two slits are $1\,mm$ apart from each other and distance of screen is $1\,m$. If illuminated with light of wavelength $5 \times 10^{-7}\,m,$ the distance between $3^{rd}$ dark fringe and $5^{th}$ bright fringe is......$mm$
→A point charge is brought in an electric field. The electric field at a nearby point.
A alternating current at any instant is given by $i=\left[6+\sqrt{56} \sin \left(100 \pi t+\frac{\pi}{3}\right)\right] A$. The rms value of the current is_________.A.
→Name of the India's first nuclear reactor is
A radioactive sample has half-life of $5$ years. Probability of decay in $10$ years will be ........$\%$
→