Thank you for your reply! I however, still am not completely clear.
If the electrons' drift velocity is low, how is the current moving so fast?
Aren't electrons supposed to carry charge and therefore current themselves?
I was just reading about drift speed and I read that the speed is about 10^-4m/s. It then struck me that if electricity is carried by electrons, then in a given circuit, how is the light bulb lighting up so quickly when according to my calculations the time taken to travel 0.5 metres for...
Thanks for the replies!
Thus, ((mv^2)/r)sinx = mg.
Even if it is agreed that perfectly horizontal isn't possible (till the speed is infinity), when we swing the bob, it does seem to be close to the eye. Thus, x is small (4-5 degrees at the most?). Thus, isn't x too small for sinx to...
I was just wondering regarding this.
When we swing a bob tied to a thread, completely perpendicular to the vertical wall (that is, parallel to the floor), what force balances the weight of the bob?
I don't think it can be mv^2/r because that centripetal force is perpendicular to the...
1. A thermometer is calibrated wrongly. At the melting point, it reads -10 degree celsius. At 50 degree celsius, it reads 60 degree celsius. What does the thermometer read at the boiling point?
2. I think this is logic-based.
3. I drew a table but got confused.