Three incandescent bulbs of $100\, W$ each are connected in series in an electric circuit. In another circuit another set of three bulbs of the same wattage are connected in parallel to the same source. Will the bulb in the two circuits glow with the same brightness? Justify your answer.
Three incandescent bulbs of $100\, W$ each are connected in series in an electric circuit. In another circuit another set of three bulbs of the same wattage are connected in parallel to the same source. Will the bulb in the two circuits glow with the same brightness? Justify your answer.
No. The resistance of the bulbs in series will be three times the resistance of single bulb. Therefore, the current in the series combination will be one-third compared to current in each bulb in parallel combination. The parallel combination bulbs will glow more brightly.
Similar Questions
$(a)$ For the circuit shown in the diagram, calculate
$(i)$ value of current through the $30\, \Omega$ resistor.
$(ii)$ total resistance of the circuit.
$(b)$ Give two advantages of connecting electrical devices in parallel with battery.
$(a)$ For the circuit shown in the diagram, calculate
$(i)$ value of current through the $30\, \Omega$ resistor.
$(ii)$ total resistance of the circuit.
$(b)$ Give two advantages of connecting electrical devices in parallel with battery.
Define power. State the difference between $1$ watt and $1$ watt hour. Establish the relationship between unit of electric energy and $SI$ unit of energy. An electric heater rated $1000\, W / 220 \,V$ operates $2$ hours daily. Calculate the cost of energy to operate for $30$ days at the rate of ₹ $5.00$ per $k W h$
Define power. State the difference between $1$ watt and $1$ watt hour. Establish the relationship between unit of electric energy and $SI$ unit of energy. An electric heater rated $1000\, W / 220 \,V$ operates $2$ hours daily. Calculate the cost of energy to operate for $30$ days at the rate of ₹ $5.00$ per $k W h$
How is an ammeter connected in a circuit ?
How is an ammeter connected in a circuit ?
How much work is to be done in moving a charge of $2 \,C$ through electric potential difference of $6\, V$ ?
How much work is to be done in moving a charge of $2 \,C$ through electric potential difference of $6\, V$ ?
Heat dissipated by a conductor when a current is passed through it is directly proportional to the resistance of the conductor.
Heat dissipated by a conductor when a current is passed through it is directly proportional to the resistance of the conductor.