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Mdcat-past-papers - ETEA - Physics Quiz

Filters: Board: ETEA | Subject: Physics |
101. An electron is moving perpendicular to the magnetic field. Which statement about electromagnetic force acting on the electron is correct?



102. For a positive charged particle (q) moving with a velocity (v) in a magnetic field of flux density B, the force (F) acting on the charged particle is given by the expression:



103. The ability to produce an electromotive force by changing the magnetic field inside a coil is used to generate:



104. One meter long copper rod is moving with speed 20m/s in the magnetic field of strength 0.6 tesla what is the value of induced emf?



105. The inductance of a coil depends on



106. What is the inappropriate statement for step-up transformer?



107. The current produced by a generator is called:



108. Low voltage levels in an electrical circuit is called:



109. The direction of induced current is determined by?



110. Lenz's law is consistent with the:



111. The basic principle behind the operation of the transformer is:



112. Output current of a half wave rectifier is:



113. The resistance of full wave rectifier is:



114. When AC is converted to DC, the process is called:



115. The primary purpose of rectification in an electrical circuit is to:



116. The half life of a radioactive sample predicts about:



117. Radioactivity does not depend upon:



118. The radiation emitted by warm-blooded animals lies in the region of:



119. An electron will have maximum kinetic energy when it has:



120. At the end of 14 minutes, 1/16 of a sample of radioactive polonium remains. The corresponding half-life is:



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