Cathode rays have a negative charge, and they are deflected by a magnetic field. A high voltage is required for a cathode ray discharge tube. Choose a value for the charge to mass ratio of electrons from the options. 1.758820 1011 C kg 1.758820 1011C kg 1.758823 1011 C kg 1.708820 1011...
Explanation: As we know, a transformer works on the principle of mutual induction, where you need a dynamic magnetic field to generate an induced emf in the secondary winding. In direct current supply, the change in frequency with respect to time is null, which means the dc supply can't ...
Q.1) Consider the following statements regarding Solar flares: 1. Solar flares are caused by reorganizing ofmagnetic field lines near sunspots 2. Solar flares also cause hot plasma to be ejected from Sun, causing a solar storm. 3. In a solar flare, energy stored in sun’s magnetic structur...
Field winding: The field winding is the coil of wire that produces the magnetic field in the machine. In a DC machine, the field winding is connected in series or parallel with the armature winding. In an AC machine, the field winding is usually located on the stator, which is the...
It depends on the strength of the external magnetic field. It acts at right angles to the direction of the particle's motion. It depends on the particle's charge. None of the above; all of these statements are valid. None of the above; all of these statements are valid. 我們有專家為...
3) Changing of Earth’s magnetic field because of which whales lose their sense of direction. 4) Natural diseases and sickness. Options : a) 1,2 & 3 only b) 2 & 4 only c) all the above d) 2,3 & 4 only Q3 PradhanMantriSahajBijliHarGharYojana -“Saubhagya” hasrecently completedth...
on a system u = velocity or speed D U = mgh C = C g x = position p ∑ i r = resistivity i u2 2 m = coefficient of friction f = magnetic flux a = = w r 1 1 m c r q = angle = ∑ k = dielectric constant t = r ¥ F t = torque Cs i Ci  t = t = I a...
2 ke (A) -2 a 2 3 ke (B) - 2 a 2 1 ke (C) 2 a 2 3 ke (D) 2 a 2 ke (E) 3 a GO ON TO THE NEXT PAGE. -8- Questions 27-28 An emf of 20 V is induced around a metal ring by increasing a uniform magnetic field at a constant rate -2 25. A point charge −...
Magnetic field Answer: A and D How To Answer Physical World and Measurement MCQ? Answering Multiple Choice Questions (MCQs) for the Physical World and Measurement section in NEET requires a strategic approach to maximize your score. Here are some tips to help you tackle these questions effectively...
Field current on X-axis and no-load current on Y-axis Armature current on X-axis and the no-load current in Y-axis Field current on X-axis and armature current on Y-axis Armature current on X-axis and filed current on Y-axis