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
MCQ (Single Correct Answer)
+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
MCQ (Single Correct Answer)
+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
MCQ (Single Correct Answer)
+4
-1
Which of the following graph represents the variation of resistivity ($$\rho $$) with temperature (T) for copper?
