A bulb whose resistance is 10 ohm is connected to a 6 V battery. Calculate
the potential difference across the bulb.

A bulb whose resistance is 10 ohm is connected to a 6 V battery. Calculate the current through the circuit?

Inductive resistance 25 ohm and capacitive resistance 75 ohm are connected across 250 V mains in series. Find the r.m.s. potential difference across inductor and capacitor.

An ideal inductor of 1 H is connected across a resistance of 100 ohm as shown in the figure. What is the potential difference across the 100 ohm resistance, when the current has attained a steady value?

A battery of e.m.f 12 V supplies a current through a oil of resistance 48 ohm. The internal resistance of the battery is 1.2 ohms. A voltmeter of resistance 72 oohm is sued to measure the potential difference across the coil. What value would it show?

Two resistances of 400 ohm and 800 ohm are connected in series with 6 volt battery of negligible internal resistance. A voltmeter of resistance 10,000ohm is used to measure the potential difference across 400 ohm. The error in the measurement of potential difference in volt approximately .

500 J of energy is produced each second in a 20 ohm bulb. Find the potential differecne across the bulb.

A resistor of resistance 20 ohm is connected across a potential difference of 20 V for one minute. Calculate the heat produced in the resistor.

A potentiometer wire of length 1 m has a resistance 10 ohm. It is connected to 6 V battery in series with a resistance of 5 ohm. Determine the emf of the primary cell which gives a balance point at 40 cm.

A current of 1 ampere flows in series circuit contains an electric lamp and a conductor of 5 ohm when connected to a 10V battery. Calculate the resistance of the electric lamp. Now if a resistance of 10 ohm is connected in parallel with this series combination, what change in current flowing through 5 ohm conductor and potential difference across the lamp will take place? Give reason.

A resistance of 900 ohm is connected in series with a galvanometer of resistance 100 ohm. A potential difference of 1 V produces a deflection of 100 division in the galvanometer. Find the figure of merit of galvanometer.