Q. No.
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1. 6.3 min
2. 8.4 min
3. 12.6 min
4. 4.2 min
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To unlock all the explanations of 14 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 14 chapters you need to be enrolled in MasterClass Course.
The metre bridge shown is in balanced position with . If we now interchange the position of galvanometer and cell, will the bridge work? If yes, what will be balanced condition?
(1) yes,
(2) no, no null point
(3) yes,
(4) yes,
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1. 1.5 V
2. 1.0 V
3. 0.5 V
4. 3.2 V
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resistor when connected across a battery. The same battery supplies a current of 0.5 A when connected across a 9 
resistor. The internal resistance of the battery is :1. 1/3
2. 1/4
3. 1
4. 0.5
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2. -r and E
3. r and -E
4. -E and r
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1. 4 W
2. 2W
3. 1 W
4. 5W
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A potentiometer circuit is set up as shown. The potential gradient across the potentiometer wire is k volt/cm and the ammeter, present in the circuit, reads 1.0 A when the two-way key is switched off. The balance points, when the key between the terminals (i) 1 and 2 (ii) 1 and 3, is plugged in, are found to be at lengths and respectively. The magnitudes, of the resistors R and X, in ohm, are then, equal, respectively, to
1.
2.
3.
4.
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