Physics
Grade-10
Easy
Question
A magnet is moved towards a coil (i) quickly (ii) slowly. The induced potential difference is ____.
- More in (i) than in (ii) case
- More in (ii) than in (i) case
- Same in both
- Can’t say
Hint:
The induced potential difference of the current in a field depends on the speed at which the magnet is moved to it.
The correct answer is: More in (i) than in (ii) case
The induced potential difference is more in (i) than in (ii).
- The induced potential difference of the current in a field depends on the speed at which the magnet is moved to it.
- If the magnet moves quickly, the potential difference in current will be more.
- When the magnet is moved slowly, the potential difference will be dropped and become less.
- Thus, the potential difference of a current in an emf will be more when the magnet is moved quickly than it is moved slowly.
Related Questions to study
Physics
The induced current's direction is determined by:
The induced current's direction is determined by:
PhysicsGrade-10
Physics
An electric generator is based on the phenomenon ofAn electric generator is a device that transforms
An electric generator is based on the phenomenon ofAn electric generator is a device that transforms
PhysicsGrade-10
Physics
An induced e.m.f. is produced by a moving conductor coil in a magnetic field. This is in accordance with:
An induced e.m.f. is produced by a moving conductor coil in a magnetic field. This is in accordance with:
PhysicsGrade-10
Physics
An electric generator is a device that transforms
An electric generator is a device that transforms
PhysicsGrade-10
Physics
A current-carrying infinitely long wire is kept along the diameter of a circular wire loop, without touching it, the correct statement(s) is(are)
I. The emf induced in the loop is zero if the current is constant.
II. The emf induced in the loop is finite if the current is constant.
III. The emf induced in the loop is zero if the current decreases at a steady rate.
A current-carrying infinitely long wire is kept along the diameter of a circular wire loop, without touching it, the correct statement(s) is(are)
I. The emf induced in the loop is zero if the current is constant.
II. The emf induced in the loop is finite if the current is constant.
III. The emf induced in the loop is zero if the current decreases at a steady rate.
PhysicsGrade-10
Physics
When a magnet is placed into a coil, an induced emf is generated. The induced emf's strength is unaffected by:
When a magnet is placed into a coil, an induced emf is generated. The induced emf's strength is unaffected by:
PhysicsGrade-10
Physics
The induced e.m.f. in a rod of length “l” translating at a speed v making an angle θ with length “l” and perpendicular to magnetic field B is:
The induced e.m.f. in a rod of length “l” translating at a speed v making an angle θ with length “l” and perpendicular to magnetic field B is:
PhysicsGrade-10
Physics
What happens when a magnet is taken close to a circular coil?
What happens when a magnet is taken close to a circular coil?
PhysicsGrade-10
Physics
What type of energy does a current-carrying coil store in itself?
What type of energy does a current-carrying coil store in itself?
PhysicsGrade-10
Physics
What type of energy does a moving conductor carry?
What type of energy does a moving conductor carry?
PhysicsGrade-10
Physics
The full form of Emf is:
The full form of Emf is:
PhysicsGrade-10
Physics
An emf produces _____.
An emf produces _____.
PhysicsGrade-10
Physics
Who discovered the phenomenon of electromagnetic induction?
Who discovered the phenomenon of electromagnetic induction?
PhysicsGrade-10
Physics
A current flow is in a wire running between the S and N poles of a magnet lying horizontally, as shown in the figure below:
The force on the wire due to the magnet is directed
A current flow is in a wire running between the S and N poles of a magnet lying horizontally, as shown in the figure below:
The force on the wire due to the magnet is directed
PhysicsGrade-10
Physics
A magnetic field directed in the north direction acts on an electron moving in the east direction. The magnetic force on the electron will act
A magnetic field directed in the north direction acts on an electron moving in the east direction. The magnetic force on the electron will act
PhysicsGrade-10