1
NEET 2020 Phase 1
+4
-1
A resistance wire connected in the left gap of a metre bridge balances a 10 $$\Omega$$ resistance in the right gap at a point which divides the bridge wire in the ratio 3:2. If the length of the resistance wire is 1.5 m, then the length of 1 $$\Omega$$ of the resistance wire is :
A
$$1.0 \times {10^{ - 1}}m$$
B
$$1.5 \times {10^{ - 1}}m$$
C
$$1.5 \times {10^{ - 2}}m$$
D
$$1.0 \times {10^{ - 2}}m$$
2
NEET 2020 Phase 1
+4
-1
The color code of a resistance is given below :

The values of resistance and tolerance, respectively, are
A
47 k$$\Omega$$ , 10%
B
4.7 k$$\Omega$$ , 5%
C
470 $$\Omega$$ , 5%
D
470 k$$\Omega$$ , 5%
3
NEET 2020 Phase 1
+4
-1
A charged particle having drift velocity 7.5$$\times$$10-4 ms-1 in an electric field of 3$$\times$$10-10 Vm-1 has a mobility in m2 V-1s-1 of :
A
2.5 $$\times$$106
B
2.5 $$\times$$10-6
C
2.25 $$\times$$10-15
D
2.25 $$\times$$1015
4
NEET 2020 Phase 1
+4
-1
Which of the following graph represents the variation of resistivity ($$\rho$$) with temperature (T) for copper?
A
B
C
D
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