- AVoltage Difference.
- BCurrent.
- CTemperature difference.
- DChemical Imbalance.
Explanation:
When a potential difference is applied across a resistor then randomly moving free electrons start to move towards positive terminal due to force applied by electric field generated due to voltage difference. thus a start to Current Flows from High Voltage to Low Voltage.
Voltage is cause and current is effect.
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When a ray of light passes from a denser to a rarer medium:
Which of the following wavelength falls in X-ray region
|
(a) 10000 Å |
(b) 1000 Å |
(c) 1 Å |
(d) 10–2 Å |
In hydrogen atom, an electron is revolving in the orbit of radius 0.53 with 6.6
rotations/second. Magnetic field produced at the centre of the orbit is
|
(a) 0.125 |
(b) 1.25 |
(c) 12.5 |
(d) 125 |
A finite ladder is constructed by connecting several sections of 2μF,4 μF capacitor combinations as shown in the figure. It is terminated by a capacitor of capacitance C. What value should be chosen for C such that the equivalent capacitance of the ladder between the points A and B becomes independent of the number of sections in between

|
(a) 4μF |
(b) 2 μF |
(c) 18 μF |
(d) 6 μF |