SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

The wheatstone bridge showing in Fig. Here, gets balanced when the carbon resistor used as R1 has the colour code (Orange, Red, Brown). The resistors R 2 and R4 are 80and 40, respectively. Assuming that the colour code for the carbon resistors gives their accurate values, the colour code for the carbon resistor, used as R3 would be:

(a)

Red, Green, Brown

(b)

Brown, Blue, Brown

(c)

Grey, Black, Brown

(d)

Brown, Blue, Black


Question ID - 50286 :-

The wheatstone bridge showing in Fig. Here, gets balanced when the carbon resistor used as R1 has the colour code (Orange, Red, Brown). The resistors R 2 and R4 are 80and 40, respectively. Assuming that the colour code for the carbon resistors gives their accurate values, the colour code for the carbon resistor, used as R3 would be:

(a)

Red, Green, Brown

(b)

Brown, Blue, Brown

(c)

Grey, Black, Brown

(d)

Brown, Blue, Black

1 Answer
5876 Votes
3537

Answer Key : (b) -

R1=32×10=320

For wheat stone bridge

 



Next Question :

Two identical spherical balls of mass M and radius R each are stuck on two ends of a rod of length 2R and mass M (see figure). The moment of inertia of the system about the axis passing perpendicularly through the centre of the rod is:

(a)

MR2

(b)

MR2

(c)

MR2

(d)

  MR2


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