WBJEE · Physics · Magnetic Effects of Current
A rectangular coil carrying-current is placed in a non-uniform magnetic field. On that coil, the total
- A force is non-zero
- B force is zero
- C torque is zero
- D torque is non-zero
Answer & Solution
Correct Answer
(D) torque is non-zero
Step-by-step Solution
Detailed explanation
Current-carrying rectangular coil is placed in a non-uniform magnetic field. So, the force on each arm of the coil will different giving the resultant force as non-zero. Thus, option (a) is correct. Also, the torque acting on current-carrying coil in non-uniform magnetic field…
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
- In a transistor output characteristicy commonly used in common emitter configuration, the base current \(I_{B}\), the collector current \(I_{C}\) and the collector-emitter voltage \(V_{C E}\) have values of the following orders of magnitude in the active regionWBJEE 2014 Medium
- A car moving at a velocity of \(17 \mathrm{ms}^{-1}\) towards an approaching bus that blows a horn at a frequency of \(640 \mathrm{Hz}\) on a straight track. The frequency of this horn appears to be \(680 \mathrm{Hz}\) to the car driver. If the velocity of sound in air is \(340 \mathrm{ms}^{-1}\), then the velocity of the approaching bus isWBJEE 2013 Medium
- Ruma reached the metro station and found that the escalator was not working. She walked up the stationary escalator with velocity \(\mathrm{v}_1\) in time \(\mathrm{t}_1\). On other day if she remains stationary on the escalator moving with velocity \(\mathrm{v}_2\), then escalator takes her up in time \(t_2\). The time taken by her to walk up with velocity \(\mathrm{v}_1\) on the moving escalator will beWBJEE 2025 Medium
- A block of mass \(m(=0.1 \mathrm{kg})\) is hanging over a frictionless light fixed pulley by an inextensible string of negligible mass. The other end of the string is pulled by a constant force \(F\) in the vertically downward direction. The linear momentum of the block increases by \(2 \mathrm{kgms}^{-1}\) in \(1 \mathrm{s}\) after the block starts from rest. Then, (given \(g=10 \mathrm{ms}^{-2}\) )
WBJEE 2013 Medium - \(S_{1}\) and \(S_{2}\) are the coherent point sources of light located in the \(x y\) -plane at points (0,0) and \((0,3 \lambda)\) respectively. Here \(\lambda\) is the wavelength of light. At which one of the following points (given as coordinates), the intensity of interference will be maximum?WBJEE 2013 Medium
- \(A\) hollow sphere of external radius \(R\) and thickness \(t(< < R)\) is made of a metal of density \(\rho\). The sphere will float in water, ifWBJEE 2015 Hard
More PYQs from WBJEE
- A \(5 \mu F\) capacitor is connected in series with \(10 \mathrm{\mu F}\) capacitor. When a \(300 \mathrm{v}\) potentid dillerence is applied across this combination, the total energy stored in the capacitors isWBJEE 2015 Medium
- The molar solubility (in mol \(\mathrm{L}^{-1}\) ) of a sparingly soluble salt \(M X_{4}\) is \({ }^{\prime} S\). The corresponding solubility product is \(K_{\mathrm{sp}} . S\) in terms of \('K_{\text {ip }}\)' s given by the relationWBJEE 2016 Hard
- Mixing of two different ideal gases under isothermal reversible condition will lead toWBJEE 2013 Easy
- If \(4 a^2+9 b^2-c^2+12 a b=0\), then the family of straight lines \(a x+b y+c=0\) is concurrent atWBJEE 2023 Medium
- If the algebraic sum of the distances from the points \((2,0),(0,2)\) and \((1,1)\) to a variable straight line be zero, then the line passes through the fixed pointWBJEE 2022 Medium
- The exact order of acidity of the compounds p-nitrophenol, acetic acid, acetylene and ethanol isWBJEE 2021 Medium