SaraNextGen.Com

To verify Ohm’s law, a student connects the voltmeter across the battery as, shown in the figure. The measured voltage is plotted as a function of the current, and the following graph is obtained :

                   

If V0 is almost zero, identify the correct statement :

a) The emf of the battery is 1.5 V and its internal resistance is 1.5

b) The emf of the battery is 1.5 V and the value of R is 1.5

c) The value of the resistance R is 1.5

d) The potential difference across the battery is 1.5 V when it sends a current of 1000 mA



Question ID - 51478 | SaraNextGen Top Answer

To verify Ohm’s law, a student connects the voltmeter across the battery as, shown in the figure. The measured voltage is plotted as a function of the current, and the following graph is obtained :

                   

If V0 is almost zero, identify the correct statement :

a) The emf of the battery is 1.5 V and its internal resistance is 1.5

b) The emf of the battery is 1.5 V and the value of R is 1.5

c) The value of the resistance R is 1.5

d) The potential difference across the battery is 1.5 V when it sends a current of 1000 mA

1 Answer
127 votes
Answer Key / Explanation : (a) -

for R = , V = E = 1.5 V

 for R = 0, I = E/r = 1

 r = 1.5

127 votes


127