AP EAMCET · PHYSICS · Magnetic Effects of Current
A current carrying square loop is placed near a straight infinitely long current carrying wire as shown in the figure. The torque acting on the loop is
- A \(\frac{\mu_0}{2 \pi} \frac{i_1 i_2 l}{a b}\)
- B \(\frac{\mu_0}{2 \pi} \frac{i_1 i_2 l}{a(a+b)}\)
- C \(\frac{\mu_0}{2 \pi} \frac{i_1 i_2 l(b-a)}{a b}\)
- D 0
Answer & Solution
Correct Answer
(D) 0
Step-by-step Solution
Detailed explanation
The forces acting on the sides of the square due to current \(i\), all lie in the planes of the coil. Therefore, there is no net torque.
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
- Isothermal bulk modulus of a gas at a pressure \(\mathrm{P}\) is ( \(\gamma\) - ratio of specific heat capacities of the gas)AP EAMCET 2023 Easy
- The gravitational force acting on a particle, due to a solid sphere of uniform density and radius \(R\), at a distance of \(3 R\) from the centre of the sphere is \(F_1\). A spherical hole of radius \((R / 2)\) is now made in the sphere as shown in the figure. The sphere with hole now exerts a force \(F_2\) on the same particle. Ratio of \(F_1\) and \(F_2\) is
AP EAMCET 2013 Hard - In a communication system operating at wavelength \(800 \mathrm{~nm}\), only one per cent of source frequency is available as signal bandwidth. The number of channels accommodated for transmitting TV signals of bandwidth \(6 \mathrm{MHz}\) isAP EAMCET 2021 Medium
- In a cylinder provided with a piston, air is under pressure \(P_1\) at a constant temperature ' \(t\) '. A soap bubble with radius ' \(r\) ' and surface tension ' \(\mathrm{T}\) ' is lying inside the cylinder. To reduce the radius of the soap bubble to half, the required air pressure inside the cylinder isAP EAMCET 2017 Hard
- A uniform wire of length \(200 \mathrm{~cm}\) is connected to a battery, two resistors and a galvanometer as shown in the figure. The galvanometer shows null deflection when the jockey \(\mathrm{J}\) is at 80 \(\mathrm{cm}\) from point \(A\). If the resistor \(R_2\) is shunted with \(30 \Omega\) resistance, the galvanometer shows null deflection when the jockey \(J\) is at \(100 \mathrm{~cm}\) from point \(B\). Then the values of \(R_1\) and \(R_2\) respectively are
AP EAMCET 2018 Hard - A bullet of mass \(m\) and velocity \(v\) when fired at a sand bag of mass \(M\), suspended by a string, gets embedded into the bag. The loss of kinetic energy in this process isAP EAMCET 2020 Medium
More PYQs from AP EAMCET
- \(y=a x+b\) isAP EAMCET 2022 Easy
- If \(3 \sin x+4 \cos x=5\), then \(6 \tan \frac{x}{2}-9 \tan ^2 \frac{x}{2}\) is equal toAP EAMCET 2012 Easy
- \(3.011 \times 10^{22}\) atoms of an element weight \(1.15 \mathrm{~g}\). The atomic mass of the element isAP EAMCET 2021 Easy
- In the given circuit, if \(\mathrm{A}=0, \mathrm{~B}=1\) and \(\mathrm{C}=1\) are inputs, then the values of \(\mathrm{y}_1\) and \(y_2\) are respectively
AP EAMCET 2025 Easy - A block of mass \(5 \mathrm{~kg}\) starts up a \(45^{\circ}\) incline plane with initial kinetic energy of \(100 \mathrm{~J}\). If the coefficient of friction between block and plane is 0.5 then the distance covered by the block before it stops is
(Acceleration due to gravity \(=10 \mathrm{~ms}^{-2}\) )AP EAMCET 2022 Easy - Assertion The colour of old lead paintings can be restored by washing them with a dilute solution of .
Reason Hydrogen peroxide reduces toAP EAMCET 2021 Easy