TS EAMCET · Physics · Current Electricity
Given the fact that
A) Magnetic field exerts force only on a moving charge
B) Electric field exerts force on both stationary and moving charge
C) Magnetic field exerts force on charge moving parallel to the direction of the field.
Which of the following is true?
- A A and C
- B A and B
- C B and C
- D A, B and C
Answer & Solution
Correct Answer
(B) A and B
Step-by-step Solution
Detailed explanation
(A). Magnetic field exerts force only on a moving charge and that is given by, F→=qv→×B→ (B). Electric field acts on both stationary and moving charge. (C). Magnetic force is given by, F→=qv→×B→, so if v is parallel to B, force will…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Thermopile Bolometer is used to detectTS EAMCET 2021 Easy
- An achromatic combination of lenses producesTS EAMCET 2008 Medium
- Match the following
List-I List-II (1) Burning candle (ii) Continuous spectrum (2) Sodium vapour (i) Line spectrum (3) Bunsen flame (iii) Band spectrum (4) Dark lines in solar spectrum (iv) Absorption spectrum TS EAMCET 2007 Medium - The electric field due to an infinitely long thin straight wire with uniform linear charge density of \(2.5 \times 10^{-7} \mathrm{Cm}^{-1}\) at a radial distance of \(x\) from the wire is \(7.5 \times 10^4 \mathrm{NC}^{-1}\). Then \(x=\)TS EAMCET 2025 Easy
- The area of cross-section of a potentiometer wire is \(6 \times 10^{-7} \mathrm{~m}^2\). The potential difference per unit length of the potentiometer wire when it is connected to a cell of negligible internal resistance and a resistor in series is \(0.15 \mathrm{Vm}^{-1}\). If the current through potentiometer wire is 0.3 A, then the resistivity of the material of the potentiometer wire isTS EAMCET 2025 Medium
- A uniform rod of length \(1.8 \mathrm{~m}\) suspended by an end is made to undergo small oscillations. Find the length of the simple pendulum having the mass and time period equal to that of the rod.TS EAMCET 2019 Medium
More PYQs from TS EAMCET
- A parallel beam of light of intensity \(I_0\) is incident on a coated glass plate. If \(25 \%\) of the incident light is reflected from the upper surface and \(50 \%\) of light is reflected from the lower surface of the glass plate, the ratio of maximum to minimum intensity in the interference region of the reflected light isTS EAMCET 2017 Hard
- The relation between the displacement ' \(x\) ' (in metre) and the time ' \(t\) ' (in second) of a particle is \(\mathrm{t}=2 x^2+3 x\). If the displacement of the particle is 25 cm from the origin \((x=0)\), then the acceleration of the particle isTS EAMCET 2025 Medium
- A block kept on a frictionless horizontal surface is connected to one end of a horizontal spring of constant \(100 \mathrm{Nm}^{-1}\) whose other end is fixed to a rigid vertical wall. Initially the block is at its equilibrium position. The block is pulled to a distance of 8 cm and released. The kinetic energy of the block when it is at a distance of 3 cm from the mean position isTS EAMCET 2024 Easy
- If the light from Balmer series of hydrogen is used to eject photoelectrons from a metal, then the maximum work function of the metal can beTS EAMCET 2021 Hard
- A glass beaker contains \(200 \mathrm{~g}\) of carbonated water initially at \(20^{\circ} \mathrm{C}\). How much ice should be added to obtain the final temperature of \(0^{\circ} \mathrm{C}\) with all ice melted, if the initial temperature of ice is \(-10^{\circ} \mathrm{C}\). Neglect heat capacity of glass. [Take, \(C_{\text {water }}=4190 \mathrm{~J} / \mathrm{kg}^{\circ} \mathrm{C}\), \[ C_{\text {ice }}=2100 \mathrm{~J} / \mathrm{kg}^{\circ} \mathrm{C}, L_F=3.34 \times 10^5 \mathrm{~J} / \mathrm{kg} \text { ] } \]TS EAMCET 2018 Easy
- The magnetic field at a point P on the axis of a short bar magnet of magnetic moment M is B. If another short bar magnet of magnetic moment 2 M is placed on the first magnet such that their axes are perpendicular and their centres coincide. The resultant magnetic field at the point P due to both the magnets isTS EAMCET 2025 Medium