In case of Q to P, current will flow from positive terminal Q to negative terminal P. In case of P to Q, current will flow from negative terminal P to positive terminal Q. (ii) Current is flowing in both the cases so the bulb will glow in both the cases.
Will the bulb glow in both cases?
(ii) Yes, the bulb will glow in both the cases as the circuit is complete in both the cases.
Which case will bulb glow?
Solution: The bulb will glow in case number 3.
Does the brightness of bulb will depend on the direction of current flow?
(iii) No, the brightness of a glowing bulb does not depend on direction of current flow. It just depends on amount of current and voltage through it.
In which case the bulb will glow Class 6?
Solution: (i) In the case of Q to P: the current flows from the positive terminal to the negative terminal. In case of P to Q: the current flows from the negative terminal to the positive terminal. (ii) Yes, the bulb will glow in both the cases as the current is flowing and the circuit is complete.
Why do bulbs have two terminals?
A bulb has two terminals, one for sending the current to the filament and the other is for receiving it back. Every electric component has two terminals one to send the current to the device one to receive it back. It is not possible for any device to have only one terminal.
In which of the figure will the bulb glow and why?
Electricity and Circuits | Exercise
Q7) Would the bulb glow in the circuit shown in Fig. 12.15? Solution: Yes, the bulb would glow in the given circuit because the circuit is closed or complete.
Will the bulb glow in the above case why?
No, the bulb would not glow in the given circuit because one of the terminals of bulb is not connected in the circuit. The base of the bulb and the metal tip of the metal case are the two terminals of the bulb.
Which is the terminal of a bulb?
An electric bulb has two terminals. The base of the electric bulb and the metal tip of the base are the two terminals of the bulb. One is called a positive terminal while the other is called a negative terminal. The filament of the electric bulb is connected to its terminals.
What is the direction of the current through the bulb?
i) Current always flows from positive terminal of a battery to negative battery through the whole circuit. In case of Q to P, current will flow from positive terminal Q to negative terminal P. In case of P to Q, current will flow from negative terminal P to positive terminal Q.
What will happen to the brightness of the bulb in this simple circuit?
The brightness of the bulb increases when the voltage is increased. All the bulbs in the circuit go out when a bulb is removed. The brightness of the bulbs decreases when the number of bulbs is increased. The bulbs in parallel are brighter.
What happens to a light bulb when current increases?
An increase in current means the bulb gets hot—hot enough to glow. As the temperature increases, however, the resistance also increases.
What is the direction of flow of electron?
Electrons flow from the negative terminal to the positive. Conventional current or simply current, behaves as if positive charge carriers cause current flow. Conventional current flows from the positive terminal to the negative.
What is electron direction?
Electrons being negatively charged flow from the negative terminal to the positive terminal of the voltage source. So, the actual direction of current should be from negative to positive terminal. However, the conventional direction had already been established firmly in scientific fraternity.
What is the direction of conventional current?
Conventional current flows from the positive terminal to the negative terminal. The conventional current can be defined as charge per unit time transported in a certain direction.
Will the bulb glow in the circuit shown in figure explain Class 6?
Answer. Yes, the bulb would glow in the given circuit because the circuit is closed or complete.
Which bulb will light up first?
…so the answer is – the bulb that has the highest cold filament resistance will likely light up first – because it will begin to dissipate the most power first, thus increasing the filament resistance more, thus beginning to starve the others of current.
Will the bulb glow in the circuit shown in Fig 12.6 explain?
12.6? Explain. No the bulb will not glow in this circuit because the switch is open and the circuit is incomplete. An electric bulb is connected to a cell through a switch as shown in Fig.
Where are the two terminals of an electric cell located?
metal cap is the positive terminal of the electric cell. The metal disc is the negative terminal.
What is inside the glass case of the bulb?
Textbook solution. The wires, stem and filament are inside a glass bulb, which is filled with inert gas, such as argon.
How is an electric bulb connected to the cell show by diagram?
The bulb has a spirally wound wire, filament, inside it. Two thick wires at the ends support this filament. An electric cell is connected to the terminals of the bulb.The filament in the bulb glows and emits light.
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