Question

some portion of a room-heater is removed the remaining part is joint to the filament. it is then connected to the same power-supply. will the heater glow brighter or dimmer & reason behind that?

Answer 1

Explanation:

Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.