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प्रश्न
State whether a magnetic field is associated or not around a static charge.
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उत्तर
A static charge is not associated with a magnetic field around it.
संबंधित प्रश्न
Draw a sketch to show the magnetic lines of force due to a current-carrying straight conductor.
What are the various ways in which the strength of magnetic field produced by a current-carrying circular coil can be increased?
State and explain the clock-face rule for determining the polarities of a circular wire carrying current.
What type of core should be put inside a current-carrying solenoid to make an electromagnet?
Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field.
The force exerted on a current-carrying wire placed in a magnetic field is zero when the angle between the wire and the direction of magnetic field is:
45°
60°
90°
180°
How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?
When current is parallel to a magnetic field, then force experience by the current-carrying conductor placed in a uniform magnetic field is ____________.
The direction of force on a current carrying conductor in a magnetic field is given by ____________.
A current-carrying conductor of a certain length, kept perpendicular to the magnetic field experiences a force F. What will be the force if the current is increased four times, the length is halved and the magnetic field is tripled?
