NEET Physics: Questions 760 - 764 of 2099
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Read the passage given below and answer the questions that follow:
In Figure given, there is a conducting loop ABCDEFA, of resistance per unit length placed near a long straight current-carrying wire. The dimensions are shown in the figure. The long wire lies in the plane of the loop. The current in the long wire varies as I = I 0 t.
Question number: 760 (1 of 3 Based on Passage) Show Passage
Question number: 761 (2 of 3 Based on Passage) Show Passage
Question number: 762 (3 of 3 Based on Passage) Show Passage
Question number: 763
A step-down transformer is used on a 1000 V line to deliver 20 A at 120 V at the secondary coil. If the efficiency of the transformer is 80%, the current drawn from the line is:
Question number: 764
A 4 kg body and a 3 kg body are moving along the x-axis. At a particular instant the 2 kg body has a velocity of 3 ms -1 and the 3 kg body has the velocity of 2ms -1. The velocity of the center of mass at that instant is
5 ms -1
1 ms -1
|d.||None of the above|