Chemistry · Electrolytic and metallic conduction, conductance in electrolytic solutions, molar conductivities and their variation with concentration, Kohlrausch's law and its applications
When the power delivered by a 100 volt battery is 40 watts, the equivalent resis
When the power delivered by a 100 volt battery is 40 watts, the equivalent resistance of the circuit is:
- A. 100 ohms
- B. 250 ohms
- C. 300 ohms
- D. 350 ohms
Step-by-step solution
Using P = V^2 / R, rearranged to R = V^2 / P. Substituting V = 100 V and P = 40 W gives R = (100^2)/40 = 10000/40 = 250 ohms.
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