MHT CET · Physics · Dual Nature of Matter
If coil is open then \(L\) and \(R\) become
- A \(\infty, 0\)
- B \(0, \infty\)
- C \(\infty, \infty\)
- D 0,0
Answer & Solution
Correct Answer
(B) \(0, \infty\)
Step-by-step Solution
Detailed explanation
When coil is open, there is no current in it, hence no flux is associated with it, ie, \(\phi=0\).
Also, we know that flux linked with the coil is directly proportional to the current in the coil, ie, \(\quad \phi \propto i\)
or
\(
\phi=L i
\)
where \(L\) is proportionality constant known as self-inductance.
\(\therefore\) \(
L=\frac{\phi}{i}=0
\)
Again since \(i=0\), hence, \(R=\infty\).
Also, we know that flux linked with the coil is directly proportional to the current in the coil, ie, \(\quad \phi \propto i\)
or
\(
\phi=L i
\)
where \(L\) is proportionality constant known as self-inductance.
\(\therefore\) \(
L=\frac{\phi}{i}=0
\)
Again since \(i=0\), hence, \(R=\infty\).
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
- The angle of incidence is found to be twice the angle of refraction when ray of light passes from vacuum into a medium of refractive index ' \(\mu\) '. The angle of incidence will beMHT CET 2024 Hard
- A circular current carrying coil has radius \(\mathrm{R}\). At what distance from the centre of the coil on the axis, the magnetic induction will become \(\frac{1}{8}\) th of its value at the centre of the coil?MHT CET 2020 Hard
- In \(\mathrm{n}^{\text {th }}\) Bohr orbit, the ratio of the kinetic energy of an electron to the total energy of it, isMHT CET 2021 Easy
- A particle performing uniform circular motion of radius \(\frac{\pi}{2} \mathrm{~m}\) makes x revolutions in time \(t\). Its tangential velocity isMHT CET 2025 Easy
- Water rises up to a height \(h\) in a capillary tube immersed vertically in water. When this whole arrangement is taken to a depth \(d\) in a mine, the water level rises up to a height \(h^{\prime}\). If \(R\) is the radius of the earth, then the ratio \(\frac{h}{h^{\prime}}\) isMHT CET 2022 Hard
- An electron of stationary Hydrogen atom passes from fifth energy level to ground level. The velocity that the atom acquired as a result of photo emission is
( \(\mathrm{m}=\) mass of electron, \(\mathrm{R}=\) Rydberg's constant)
( \(\mathrm{h}=\) Planck's constant)MHT CET 2024 Medium
More PYQs from MHT CET
- A weightless thread can bear tension up to 3.7 kg wt. A stone of mass 500 gram is tied to it and revolved in circular path of radius 4 m in vertical plane. Maximum angular velocity of the stone will be (acceleration due to gravity, \(g=10 \mathrm{~m} / \mathrm{s}^2\) )MHT CET 2025 Medium
- If \(p\) and \(q\) each have truth value \(F\), then the truth values of the statement patterns \((\sim p \vee q) \leftrightarrow \sim(p \wedge q)\) and \(\quad \sim p \leftrightarrow(p \rightarrow \sim q)\) respectively areMHT CET 2022 Easy
- The odds in favour of drawing a king from a pack of 52 playing cards isMHT CET 2020 Medium
- The variance of first 10 multiples of 3 isMHT CET 2022 Easy
- \(\int_0^{\frac{\pi}{4}} \frac{\cos ^2 x \sin ^2 x}{\left(\cos ^3 x+\sin ^3 x\right)^2} \mathrm{~d} x=\)MHT CET 2025 Medium
- When light of wavelength \(\lambda\) is incident on a photosensitive surface the stopping potential is ' \(\mathrm{V}\) '. When light of wavelength \(3 \lambda\) is incident on same surface the stopping potential is \(\frac{\mathrm{V}}{6}\). Then the threshold wavelength for the surface isMHT CET 2023 Medium