Advertisements
Advertisements
Question
Draw a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5 Ω resistor, an 8 Ω resistor, and a 12 Ω resistor, and a plug key, all connected in series.
Advertisements
Solution
Three cells of potential 2 V, each connected in series; therefore, the potential difference of the battery will be 2 V + 2 V + 2 V = 6V. The following circuit diagram shows three resistors of resistances 5 Ω, 8 Ω and 12 Ω, respectively, connected in series, and a battery of potential 6 V and a plug key, which is closed, means the current is flowing in the circuit.
APPEARS IN
RELATED QUESTIONS
Draw circuit symbols for
a cell
Draw the labelled diagram of an electric circuit comprising of a cell, a resistance, an ammeter, a voltmeter and a closed switch (or closed plug key). Which of the two has a large resistance : an ammeter or a voltmeter?
Who will spend more electrical energy? 500 W TV Set in 30 mins, or 600 W heater in 20 mins?
Observe the following figure which bulb get fuse?
Two tungsten bulbs of power 50 W and 60 W work on 220 V potential difference. If they are connected in parallel, how much current will flow in the main conductor?
What do you understand by the open electric circuit?
Nowadays MCBs are used in homes, for stop the current in the circuit which suddenly increases.
The switch is used to close or open an electric circuit.
Draw the circuit diagram for the series connection.
Higher Order Question
A student made a circuit by using an electric cell, a switch, a torch bulb (fitted in the bulb holder), and copper connecting wires. When he turned on the switch, the torch bulb did not glow at all. The student checked the circuit and found that all the wire connections were tight.
- What could be the possible reason for the torch bulb not glowing even when the circuit appears to be complete?
Study the three electric circuits below. Each of them has a glass rod (G), a steel rod (S), and a wooden rod (W).
In which of the electric circuits would the bulb not light up.
Fuse is
Three bulbs are connected end to end from the battery. This connection is called _______.
When a circuit is open, _____ cannot pass through it.
In a circuit, if the key is in open (off) condition, then electricity will not flow.
Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2 Ω in series with a combination of two resistors (4 Ω each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2 Ω resistor be the same as that across the parallel combination of 4 Ω resistors? Give reason.
Choose the statement which is not correct in the case of an electric fuse.
Paheli is running short of connecting wires. To complete an electric circuit, she may use a ______.
Overloading of electric circuits can lead to short-circuiting.
