When a charged particles moves in a uniform magnetic field in a direction perpendicular to the field, then the path of the particle will be:
- ✓Perabolic
- BCircular
- CStraight line
- DHelical
Answer: A.
View full solution →Question types
Moving Charges and Magnetism question types
134 questions across 7 question groups — pick any mix to generate a Physics paper with step-by-step answer keys.
134
Questions
7
Question groups
5
Question types
01
M.C.Q (1 Marks)
30 Q→021 Marks Question
45 Q→032 Marks Questions
25 Q→043 Marks Question
5 Q→055 Marks Questions
17 Q→06Case study (4 Marks)
1 Q→07Fill in the blanks.
11 Q→Sample Questions
Moving Charges and Magnetism questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Moving charge produces:
- AOnly electric field
- BOnly magnetic field
- ✓Both electric and magnetic field
- DElectromagnetic waves along with electric and magnetic field
Answer: C.
View full solution →The toroid of radius $10 \ cm$ has $100$ turns. If a current of $0.1$ ampere is flowing in it, then the value of the magnetic field on the axis of the toroid will be:
- ✓$2 \times 10^{-4} T$
- B$4 \times 10^{-4} T$
- C$6 \times 10^{-4} T$
- D$8 \times 10^{-4} T$
Answer: A.
View full solution →An electron moves with a constant velocity $v$ in a uniform magnetic field $B,$ parallel to the direction of the magnetic field. The force acting on electron is:
- ✓zero
- B$Bev$
- C$\frac{ B }{e v}$
- D$\frac{Be}{v}$
Answer: A.
View full solution →A moving coil galvanometer can be converted into voltmeter by:
- Ajoining high resistor in parallel
- Bjoining low resistor in series
- ✓joining high resistor in series
- Djoining low resistor in parallel
Answer: C.
View full solution →How can a galvanometer be converted into a voltmeter?
The ratio between flux binding and current I passing through a coil of N turns is called $\left(\frac{ N \phi}{2}\right)$
View full solution →Area of a plane loop is A . Current I is flowing through it and it is located in a uniform magnetic field $\overrightarrow{ B }$. Obtain an expression for torque $\vec{\tau}$ acting on it. If this loop is free to rotate then what will be its orientation in stable position?
View full solution →A plane loop of rectangular shape is moved in such a uniform magnetic field which is perpendicular to the plane of the loop. What is the direction and magnitude of induced current in the loop?
Write the direction $\otimes$ and $\odot$ of magnetic field produced at point $P$ in the given figure
View full solution →Draw a diagram of magnetic field lines due to any current carrying circular loop.
Radii of two circular current carrying coils are $r_1$ and $r_2$ respectively and number of turns in them are $n_1$ and $n_2$ respectively. They are joined in series. Prove that the ratio of produced magnetic fields at their centers is $n_1 r_2: n_2 r_1$. If coils are joined in parallel, then the ratio of magnetic fields produced at the centers is equivalent to $\left(r_2 / r_1\right)^2$.
View full solution →Resistance of a galvanometer is $30 \Omega$. A current of 2 mA gives full scale deflection in it. Calculate the necessary resistance required to make it an ammeter of range $(0-0.3 A)$.
View full solution →In a solenoid, there are 500 turns/meter and current flowing in it is 5 A . Length of the solenoid is 0.5 m and its radius is 1 cm . Calculate the intensity of magnetic field inside the solenoid.
A coil of N turns is wound tightly in the form of a spiral whose internal and external radii $r_1$ are $r_2$ and respectively. Current $I$ is flowing through the coil, then calculate the magnetic field at the center.
View full solution →"Write ampere's circuital law. In a long straight wire of cross-sectional cut (radius a), a direct current is flowing in the wire. Current is uniformly distributed in the wire. Calculate the magnetic field in inner surface of the wire ( $r
View full solution →Current of 4 A is flowing in a straight wire AB. A proton $P$ is travelling parallel to the wire in the opposite direction of current with a speed of $4 \times 10^6$ $m / s$ at a distance of 0.2 m from the wire as shown in the diagram. Calculate the magnitude of force applied on the proton and also tells its direction.
View full solution →Two long parallel wires are 8 cm apart. Currents of magnitudes $i$ and $3 i$ are flowing in them respectively in the same direction. Where the resultant magnetic field due to two will be zero?
View full solution →An alpha particle enters a magnetic field of 0.2 weber $/ m ^2$ with a speed of $6.0 \times 10^5 m / s$ perpendicular to the field. Find out the acceleration of the particle and radius of the path.
View full solution →Write Biot-Savart law. Write the path of the motion of an electron when it enters magnetic field (a) perpendicularly (b) at $\theta$ angle.
View full solution →Obtain expression for force on unit length of two straight parallel current carrying conductors. Under what conditions is this force attractive or repulsive? Define the standard unit of electric current.
Examine the maximum value of magnetic field at a point on the axis of circular current carrying coil after obtaining an expression for it.###Calculate produced magnetic field on the axis of any current carrying circular coil by making diagram. Examine the graph between distance and change in magnetic field after drawing the graph.
What is a voltmeter? How can a galvanometer be converted into a voltmeter of given range? Explain.
What is an ammeter? How can we convert any galvanometer into an ammeter of given range? Explain.###Describe briefly that how and when any galvanometer is converted into an ammeter?
What is rivetted galvanometer? What is the function of shunt in a galvanometer?
Derive an expression for the magnetic field at any point on the axis of a current carrying loop from Bio-Savart's law. Draw the necessry fig.
When electric current flows in the same direction in two parallel electricity conducting wires, they experience $...............$ force between them.
View full solution →Galvanometer cannot be used to measure current in a circuit like $...............$
View full solution →If magnetic field doing work on a charged particle is perpendicular to the velocity of the particle, then there no $...............$ on moving charged particle.
View full solution →By Fleming's left hand rule, direction of $...............$ acting on current carrying wire can be determined.
View full solution →A charge at rest in a magnetic field does not experience $...............$
View full solution →Generate a Moving Charges and Magnetism paper free
Pick question groups from the list above, set marks and difficulty, and export a branded PDF with step-by-step answer keys. First 3 chapters free — no signup.