enEnglishguગુજરાતી
GUJCET · Physics · Magnetism And Matter
The relative permeability in a core of a solenoid is 400. The windings of a solenoid are insulated from the core and carry a current of 2 A . If the number of turns is \(1 0 0\) per meter. Then magnetic intensity inside the core of solenoid is _________ \(\frac{ A }{ m }\).
- A \(2 \times 10^{-3}\)
- B \(2 \times 10^3\)
- C \(2.5 \times 10^3\)
- D \(2.5 \times 10^{-3}\)
Answer & Solution
Correct Answer
(B) \(2 \times 10^3\)
Step-by-step Solution
Detailed explanation
B
\(\begin{aligned} H & =n I \\ & =1000 \times 2 \\ & =2 \times 10^3 \frac{A}{ m }\end{aligned}\)
\(\begin{aligned} H & =n I \\ & =1000 \times 2 \\ & =2 \times 10^3 \frac{A}{ m }\end{aligned}\)
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
- An electron is projected with uniform velocity along the axis of current carrying long solenoid. Which of the following is true ?GUJCET 2023 Medium
- Equivalent capacitance between X and Y point in the given figure is ________.
GUJCET 2008 Medium -
The Wheatstone bridge is in balanced condition in the given figure, then X = ___________.GUJCET 2026 Medium - An electric dipole with dipole moment \(4 \times 10^{-9} Cm\) is aligned at \(60^{\circ}\) with direction of a uniform electric field of magnitude \(5 \times 10^4 NC ^{-1}\). Calculate the magnitude of the torque acting on the dipole.GUJCET 2022 Easy
- The radii of curvature of the faces of a double convex lens are 10 cm and 15 cm . Its focal length is 12 cm . What is the refractive index of material of lens?GUJCET 2021 Medium
- The angle between the electric field and the dipole moment at any point on the equatorial plane is _______.GUJCET 2024 Medium
More PYQs from GUJCET
- If a source is transmitting electromagnetic waves of frequency \(8.196 \times 10^{6} \mathrm{~Hz}\), then the wavelength of the EM waves transmitted from the source will be __________ .GUJCET 2010 Medium
- Resonance frequency of L－C－R AC circuit is \(\nu_{0}\). Now the capacitance is made 4 times，then the new resonance frequency will become ____________ ．GUJCET 2007 Easy
- The divalent ion of which of the following element in aqueous solution has magnetic moment 5.92 BM ?GUJCET 2020 Easy
- Two large, thin metal plates are parallel and close to each other on their inner faces, the plates have surface charge densities of same signs and of magnitude \(17.7 \times 10^{-22} C / m ^2\). What is E in the outer region of the second plate?GUJCET 2021 Medium
- Find the time required for a 50 Hz alternating current to become its value from zero to the rms value.GUJCET 2009 Hard
- If the primary coil of a transformer has 100 turns and the secondary has 200 turns. Then for an input of 220 V at 10 A , then output current, in the step-up transformer will be ______________ .GUJCET 2023 Easy