1
JEE Main 2019 (Online) 8th April Morning Slot
+4
-1
A 200 $$\Omega$$ resistor has a certain color code. If one replaces the red color by green in the code, the new resistance will be :
A
500 $$\Omega$$
B
100 $$\Omega$$
C
200 $$\Omega$$
D
300 $$\Omega$$
2
JEE Main 2019 (Online) 8th April Morning Slot
+4
-1
For the circuit shown, with R1 = 1.0W, R2 = 2.0 W, E1 = 2 V and E2 = E3 = 4 V, the potential difference between the points 'a' and 'b' is approximately (in V):
A
3.3
B
2.7
C
2.3
D
3.7
3
JEE Main 2019 (Online) 12th January Evening Slot
+4
-1
A galvanometer, whose resistance is 50 ohm, has 25 divisions in it. When a current of 4 $$\times$$ 10–4 A passes through it, its needle ( pointer) deflects by one division. To use this galvanometer as a voltmeter of range 2.5 V, it should be connected to a resistance of :
A
200 ohm
B
250 ohm
C
6200 ohm
D
6250 ohm
4
JEE Main 2019 (Online) 12th January Evening Slot
+4
-1
In the given circuit diagram, the currents, I1 = – 0.3 A, I4 = 0.8 A and I5 = 0.4 A, are flowing as shown. The currents I2, I3 and I6, respectively, are :

A
1.1 A, – 0.4 A, 0.4 A
B
$$-$$ 0.4 A, 0.4 A, 1.1 A
C
0.4 A, 1.1 A, 0.4 A
D
1.1 A, 0.4 A, 0.4 A
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