Advertisements
Advertisements
प्रश्न
Electric cells having 2V potential difference each have been connected in the form of a battery. What will be the total potential difference of the battery in both cases?
उत्तर
- Total potential difference = 2 + 2 + 2 = 6 V
- Total potential difference = 2 + 2 + 2 + 2 = 8 V
संबंधित प्रश्न
What is meant by saying that the potential difference between two points is 1 V?
The values of current (I) flowing through a given resistor of resistance (R), for the corresponding values of potential difference (V) across the resistor are as given below:
| V (volts) | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 4.0 | 5.0 |
| I (amperes) | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1.0 |
Plot a graph between current (I) and potential difference (V) and determine the resistance (R) of the resistor.
Define one coulomb charge.
A potential difference of 20 volts is applied across the ends of a resistance of 5 ohms. What current will flow in the resistance?
How does the resistance of a metallic wire depend on its temperature? Explain with reason.
Explain why potential difference is always less than the e.m.f. of a cell?
Three resistors are connected to a 12 V battery as shown in the figure given below:
(i) What is the current through the 8 ohm resistor?
(ii) What is the potential difference across the parallel combination of 6 ohm and 12 ohm resistor?
(iii) What is the current through the 6 ohm resistor?
Suppose there are three resistors A, B, and C having resistances r1, r2, and r3 respectively. If R represents their equivalent resistance, establish the following relation R = r1 + r2 + r3 when joined in series.
An electric charge always flows from a point at a ______ to a point at a ______.
Define Electric potential.
