MCQ
Electric switches and appliances should be tested only with:
  • A
    Right hand
  • B
    Left hand
  • C
    Both hands
  • Electric tester

Answer

Correct option: D.
Electric tester
We should not touch the electric appliance with bare hands. To check the supply in the circuit, the electric tester should be used.

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

Similar questions

A proton and an alpha particle are separately projected in a region where a uniform magnetic field exists. Their initial velocities are perpendicular to direction of magnetic field. If both the particles move around magnetic field in circles of equal radii, the ratio of momentum of proton to alpha particle $\left(\frac{\mathrm{p}_{\mathrm{p}}}{\mathrm{p}_\alpha}\right)$ is
The relative permeability is represented by $m_r$ and the susceptibility is denoted by $c$ for a magnetic substance. Then for a paramagnetic substance
An electric charge $q$ is placed at the centre of a cube of side $\alpha $. The electric flux on one of its faces will be
A beam consisting of protons and electrons moving at the same speed goes through a thin region in which there is a magnetic field perpendicular to the beam. The protons and the electrons:
$\gamma$-rays radiation can be used to create electron-positron pair. In this process of pair production, $\gamma$-rays energy cannot be less than .......$MeV$
A $5.0\, \mu F$ capacitor is charged to a potential difference $800\, V$ and discharged through a conductor. The energy(in $J$) given to a conductor during the discharge is
Vibration magnetometer before use, should be set
If the capacitance of each capacitor in the tetrahedron shown is $C$ , then effective capacitance of the network across any two junctions is ......$C$
In the figure, current through the 3 Ω resistor is 0.8 ampere, then potential drop through 4 Ω resistor is

In a car, a rear view mirror having a radius of curvature $1.50\, m$ forms a virtual image of a bus located $10.0 \,m$ from the mirror. The factor by which the mirror magnifies the size of the bus is close to