KCET · Physics · Magnetic Effects of Current
A square loop of side 2 m lies in the \(Y-Z\) plane in a region having a magnetic field \(\vec{B}=(5 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}-4 \hat{\mathrm{k}}) \mathrm{T}\). The magnitude of magnetic flux through the square loop is
- A 20 Wb
- B 12 Wb
- C 16 Wb
- D 10 Wb
Answer & Solution
Correct Answer
(A) 20 Wb
Step-by-step Solution
Detailed explanation
\(\begin{aligned} & \overline{\mathrm{A}}=(2 \times 2) \hat{\mathrm{i}} \quad \text { [as loop is in y-z plane] } \\ & =4 \hat{\mathrm{i}} \\ & \overline{\mathrm{B}}=5 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}-4 \hat{\mathrm{k}} \mathrm{T} \\ & \therefore \phi=\overline{\mathrm{B}} \cdot \overline{\mathrm{A}}=(5 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}-4 \hat{\mathrm{k}}) \cdot 4 \hat{\mathrm{i}} \\ & =20 \mathrm{~Wb}\end{aligned}\)
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
- A rod of length \(2 \mathrm{~m}\) slides with a speed of \(5 \mathrm{~ms}^{-1}\) on a rectangular conducting frame as shown in figure. There exists a uniform magnetic filed of \(0.04 \mathrm{~T}\) perpendicular to the plane of the figure. If the resistance of the rod is \(3 \Omega\). The current through the rod is
KCET 2020 Hard - A series LCR circuit contains inductance \( 5 \mathrm{mH} \), capacitance \( 2 \mu \mathrm{F} \) and resistance \( 10 \Omega \). If a frequency A.C. source is varied, what is the frequency at which maximum power is dissipated \( ? \)KCET 2014 Hard
- Two monochromatic light waves of amplitudes \(3 \mathrm{~A}\) and \(2 \mathrm{~A}\) interfering at a point have a phase difference of \(60^{\circ}\). The intensity at that point will be proportional toKCET 2011 Medium
- A thermodynamic system undergoes a cyclic process \( A B C \) as shown in the diagram. The work done by the system per cycle is
KCET 2019 Medium - The principle of LASER action involvesKCET 2007 Easy
- A man weighs \(80\) kg. He stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of \(6 \text{ m/s}^2\). What would be his weight in kg? (\(g = 10 \text{ m/s}^2\))KCET 2026 Medium
More PYQs from KCET
- In the following network potential at 'O'
KCET 2016 Easy - The energy of electron in the \( n^{\text {th }} \) Bohr orbit of H-atom isKCET 2016 Easy
- The test to differentiate between pentan-2-one and pentan-3-one isKCET 2022 Medium
- Choose the possible genotype responsible for lightest skin colour in human beings.KCET 2018 Easy
- In a population of 800 rabbits showing Hard-Weinberg equilibrium, the frequency of recessive individuals was 0.16. What is the frequency of heterozygous individuals?KCET 2023 Medium
- \(30 \operatorname{cc}\) of \(\frac{\mathrm{M}}{3} \mathrm{HCl}, 20 \operatorname{cc}\) of \(\frac{\mathrm{M}}{2} \mathrm{HNO}_{3}\) and \(40 \mathrm{cc}\) of \(\frac{\mathrm{M}}{4} \mathrm{NaOH}\) solutions are mixed and the volume was made up to \(1 \mathrm{dm}^{3}\). The \(\mathrm{pH}\) of the resulting solution isKCET 2009 Easy