## Current Electricity Quiz-5

As per analysis for previous years, it has been observed that students preparing for NEET find Physics out of all the sections to be complex to handle and the majority of them are not able to comprehend the reason behind it. This problem arises especially because these aspirants appearing for the examination are more inclined to have a keen interest in Biology due to their medical background.

Furthermore, sections such as Physics are dominantly based on theories, laws, numerical in comparison to a section of Biology which is more of fact-based, life sciences, and includes substantial explanations. By using the table given below, you easily and directly access to the topics and respective links of MCQs. Moreover, to make learning smooth and efficient, all the questions come with their supportive solutions to make utilization of time even more productive. Students will be covered for all their studies as the topics are available from basics to even the most advanced.

Q41. By using only two resistances coils-singly, in series or in parallel one should be able to obtain resistance of 3,4,12 and 16 ohm. The separate resistance of the coil are
•  3 and 4
•  4 and 12
•  12 and 16
•  16 and 13
Solution

Q42.Find equivalent resistance between A and B

•  R
•  3R/4
•  R/2
•  2R
Solution

Q43.  There are two electric bulbs of 40 W and 100 W. Which one will be brighter when first connected in series and then in parallel
•  40 W in series and 100 W in parallel
•   100 W in series and 40 W in parallel
•  40 W both in series and parallel will be uniform
•  100 W both in series and parallel will be uniform
Solution

Q44. The power of heater is 750 W at 1000℃. What will be its power at 200℃ if a=4×10-4 per℃ ?
•  400 W
•  990 W
•  250 W
•  1500 W
Solution

Q45.The deflection in a moving coil galvanometer is reduced to half when it is shunted with a 40 Î© coil. The resistance of the galvanometer is
Solution

Q46. A copper voltmeter is connected in series with a heater coil of resistance 0.1Î©. A steady current flows in the circuit for twenty minutes and mass of 0.99 g of copper is deposited at the cathode. If electrochemical equivalent of copper is 0.00033 gm/C, then heat generated in the coil is
•  750 J
•  650 J
• 350 J
•  250 J
Solution

Q47.In the adjacent shown circuit, a voltmeter of internal resistance R, when connected across B and C reads 100/3 V. Neglecting the internal resistance of the battery, the value of R is
Solution

Q48.The reciprocal of resistance is
•  Conductance
•  Resistivity
•  Voltage
•  None of the above
Solution
The reciprocal of resistance is called conductance

Q49.To decrease the range of an ammeter, its resistance need to be increased. An ammeter has resistance R0 and range I. Which of the following resistance can be connected in series with it to decreases its range to I/n?
•  R0/n
•  R0/((n-1))
•  R0/((n+1))
•  None of the above
Solution

Q50. The reading of the ammeter as per figure shown is
•  1/8A
•  3/4 A
•  1/2A
• 2A
Solution

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