TS EAMCET · Physics · Magnetic Effects of Current
The magnetic field at point \(P\) of given figure due to carrying of current \(I\) by a conductor of radius \(R\), is
- A \(\frac{\mu_0 l}{4 \pi r} \mathrm{~T}\)
- B \(\frac{\mu_0 l}{2 \pi r} \mathrm{~T}\)
- C \(\frac{\mu_0 l}{2 \pi R} T\)
- D \(\frac{\mu_0 I}{4 \pi R} \top\)
Answer & Solution
Correct Answer
(B) \(\frac{\mu_0 l}{2 \pi r} \mathrm{~T}\)
Step-by-step Solution
Detailed explanation
Magnetic field due to a current carrying conductor at an outside point is given by \(B=\frac{\mu_0 I}{2 \pi r} \mathrm{~T}\)
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
- A wire has resistance of \(3.1 \Omega\) at \(30^{\circ} \mathrm{C}\) and \(4.5 \Omega\) at \(100^{\circ} \mathrm{C}\). The temperature coefficient of resistance of the wire isTS EAMCET 2017 Hard
- A uniform conducting wire \(\mathrm{AB}\) of length \(5 \mathrm{~m}\) and resistance \(5 \Omega\) is connected as shown in the circuit. If the balancing point is obtained at \(3 \mathrm{~m}\) from \(\mathrm{A}\), then the value of \(\mathrm{E}\) is
TS EAMCET 2023 Easy - A circular coil of area \(3 \times 10^{-2} \mathrm{~m}^2, 900\) turns and a resistance of \(1.8 \Omega\) is placed with its plane perpendicular to a uniform magnetic field of \(3.5 \times 10^{-5} \mathrm{~T}\). The current induced in the coil when it is rotated through \(180^{\circ}\) in half a second isTS EAMCET 2025 Medium
- A ball falls freely from a height \(\mathrm{h}\) on a rigid horizontal plane. If the coefficient of restitution is e, then the total distance travelled by the ball before hitting the plane second time isTS EAMCET 2023 Medium
- Four resistors \(A, B, C\) and \(D\) form a Wheatstones bridge. The bridge is balanced, when \(C=100 \Omega\). If \(A\) and \(B\) are interchanged, the bridge balances for \(C=121 \Omega\). The value of \(D\) isTS EAMCET 2012 Easy
- A circular wire loop of radius \(1 \mathrm{~cm}\) carries a total charge \(1 \times 10^{-6} \mathrm{C}\) distributed uniformly over its length. If \(0.01 \%\) of its length (circumference) is cut-off, then the electric field at the centre of the loop due to the remaining wire is \[ \left(\text { Take, } \frac{1}{4 \pi \varepsilon_0}=9 \times 10^9 \text { SI unit }\right) \]TS EAMCET 2021 Easy
More PYQs from TS EAMCET
- Two stars of masses ' \(M\) ' and ' \(2 M\) ' that are at a distance ' \(d\) ' apart, are revolving one around another. The angular velocity of the system of two stars is (G-Universal gravitational constant)TS EAMCET 2024 Easy
- If the resistances are chosen for the circuit shown in figure in such a way that no current flows through the battery with emf \(E_1\), the voltage \(V_2\) across \(R_2\) and the current \(Y_3\) flowing through \(R_3\) are respectively,
TS EAMCET 2019 Medium - If the resistance of each edge of a cube shaped wire frame as shown in figure below is \(R\), then the resistance between points 1 and 7 is
TS EAMCET 2018 Medium - A ball is thrown straight upward from ground with a speed of \(20 \mathrm{~m} / \mathrm{s}\). The ball was caught on its way down at a point \(5 \mathrm{~m}\) above the ground. The time taken by the ball during entire trip is (assume, \(g=10 \mathrm{~m} / \mathrm{s}^2\) )TS EAMCET 2020 Easy
- A block of mass \(100 \mathrm{~g}\) is suspended vertically from a massless spring system of spring constant, \(k=1 \mathrm{~N} / \mathrm{m}\) each. The block is hit from above to impart an impulse of 2 Ns. Calculate the maximum displacement from the Equilibrium position of the block. (Take, \(g=10 \mathrm{~m} / \mathrm{s}^2\) )
TS EAMCET 2019 Easy - Which of the following statements is not correct when a junction diode is in forward bias?TS EAMCET 2008 Easy