What happens to the brightness of bulb A when the switch is closed and bulb B lights up?

What happens to the brightness of bulb A when the switch is closed and bulb B lights up?

Answer Expert Verified When the switch is open then no current can flow, on the other hand, when it is closed, current will pass through. When only “bulb a” is connected to the battery then more current is flowing to “bulb a” causing it to be bright. So the light of “bulb a” will be dimmer.

How many bulbs will light up when the switch is closed?

when the switch is closed? =12 because equal resistance divides 24V in half. →The light bulbs in the circuit shown below are identical.

Why does the filament of a light bulb glow but the connecting wires do not?

The filament of a bulb is made of tungsten which has high resistance. Due to this high resistance, heat is produced in the filament which makes it glow and emit light. The connecting wires are made of conducting materials with low resistance due to which no heat it generated and it does not glow.

What would happen to light bulb C if light bulb A & B burned out?

If it burns out, the current cannot flow through it and the A branch of parallel connection is no longer there. Now the circuit is just B and C connected in series.

What happens to the other bulbs if bulb A burns out what if bulb B burns out?

If a bulb burns out – what happens to the other bulb in each circuit? In the series circuit, the burned out bulb will short the circuit and the other bulb will go out. In the parallel circuit the other bulb will have the same brightness.

Which bulbs will go out if bulb B burns out?

Justification: When Bulb B burns out, a gap in the circuit is formed: No current will flow through this circuit. Since no current flows in the circuit, there is no potential difference across either of the two remaining bulbs. All the bulbs in series with Bulb 2 will go out.

How do you equalize two batteries?

Battery Equalization

1. The batteries must be fully charged to begin with.
2. Disconnect all loads.
3. Remove any hydrocaps fitted to the cells.
4. Connect the charger and set it to the equalizing voltage. (
5. Batteries will begin gassing and bubbling vigorously.

What are 3 stages of battery charging?

The three stages or steps in lead/acid battery charging are bulk, absorption, and float. Qualification, or equalization are sometimes considered another stage.

How does a battery Desulfator work?

A desulfator uses voltage or high-frequency pulses to “zap” the sulfates that have built up over time in your battery. The electricity loosens the sulfates and they drop back into the acid and dissipate. A good desulfator can rejuvenate your batteries and save you money over the long run.