Abulb with a resistance of 4 ohms is plugged into a 2v battery. it has a capacity of 3 amps-hours. how long will this bulb remain at a constant brightness? show all your working.

Bulb will remain at constant brightness for 6 hour

Explanation:

We have given resistance of the bulb R = 4 ohm

Potential difference of the battery V = 2 volt

So current

Capacity of the battery is given as 3 amp hour

We have to find the time by which bulb will remain at constant brightness

So time will be

So bulb will remain at constant brightness for 6 hour

i think its

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.