The space around a charge in which its effect can be felt is called its
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Power voltage rating of an electric bulb is 100 W 200 V. Current drawn by it will be ?
Which two circuit components are connected in parallel in the following circuit diagram
To determine the equivalent resistance of a series combination of two resistors R1 and R2, a student arranges the following set up
Which one of the following statement will be true for this circuit?
The correct relation between heat produced (H) and electric current (I) flowing
In parallel combination of electrical appliances, total electrical power
Which two circuit components are connected in parallel in the following circuit diagram
When current flows anticlockwise in a loop the magnetic polarity of the face is
When an electric current flows through a long solenoid, magnetic field is set up in and around the solenoid
Which of the following statements is incorrect regarding magnetic field lines :
The magnetic field near a long straight wire is described by
TRUE OR FALSE ?
When some electric current flows through a wire, magnetic field is produced around the wire.
True OR Flase ?
A coil with large number of turns forms a solenoid.
True OR False?
Direct current has a constant magnitude and direction.
True OR False ?
Magnetic field lines determine only the direction of magnetic field but not the relative strength of the magnetic field.
True OR False ?
Magnetic field lines are crowded in a region of strong magnetic field
True OR False ?
Direction of force experienced by a current carrying wire placed perpendicular to the magnetic field is determines
by Fleming's left hand rule
. The sign of charge on a body which has gained electrons is .....................
The charge that measures the intensity of electric field at a point is called a ................. charge
To have north polarity at a face, the current in loop must flow in .................. direction
In electromagnetic induction, motion of a .................. in a fixed coil produces electric current
For earthing of an appliance we use .................. pin plug and socket (shoe).
To avoid damage due to large current we must use a ..................