0 of 10 questions completed
You must specify a text.
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
0 of 10 questions answered correctly
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
In the calibration of ammeter experiment, a standard cell of e.m.f. 1.1 volt gets balanced at 7.70 m of potentiometer wire. If the potential difference across 1W resistance gets balanced at 1.75m, then the current indicated by ammeter is 2/10A. The error in the reading of ammeter will be-CorrectIncorrect
A 50 Ω resistance galvanometer has 25 division on its scale. On sending a current of 4 x 10^-4 A in it, the pointer gives a deflection of 1 division. The resistance required to be connected with it so that this galvanometer becomes a voltmeter of 2.5 volt range ?CorrectIncorrect
A potentiometer having 10m long wire is connected to an accumulator having a steady e.m.f.. A leclanche cell gives a null point at 750 cm from one end of potentiometer. If the length of the potentiometer wire is increased by 100 cm, then the new position of null point will beCorrectIncorrect
A potentiometer wire of length 1 m and resistance 10 ohm/m and a resistance box are connected in series with a battery of 2 volt. A potential difference of 10 mV is balanced across the whole length of potentiometer wire. The resistance of box is-CorrectIncorrect
In the following circuit the potential difference between the points B and C is balanced against 40 cm length of potentiometer wire. In order to balance the potential difference between the points C and D, where should jockey be pressed ?CorrectIncorrect
Two particles A and B having masses equal and charges q and 4q. If these are accelerated from rest through same potential difference, then what will be the ratio in their speeds?CorrectIncorrect
In the adjacent fig. a unit positive charge moves along the path ABC in an electric field E. The potential difference between A & C will beCorrectIncorrect
The bob of a pendulum carries an electric charge of 39.2 × 10^–10 coulomb in a horizontal electric field of 20 × 10^3 V/m and it is at rest. The angle made by the pendulum with the vertical will be, if the mass of pendulum is 8 × 10^–6 kg and g = 9.8 m/s2 –CorrectIncorrect
Two small balls having equal charges Q, are suspended from a hook with two insulating threads each of length L. This arrangement is carried in the space, where there is no gravitation. The tension in each string will be-CorrectIncorrect
A conducting wire has length and diameter . After stretching the same wire length becomes and diameter . The ratio of resistances before and after stretching isCorrectIncorrect