Question
(f) Write down the equation which links charge flow (Q), current (I)and time (f) (2) __ (g) The manufacturer increased the current in the filament lamp to 200 mA. Calculate the charge flow through the filament lamp in 15 s. __ Charge flow= (1
Answer
4.7
(237 Votes)
Joanne
Professional · Tutor for 6 years
Answer
## For (f):The equation which links charge flow (Q), current (
) and time (
) is
.## For (g):The charge flow through the filament lamp is
.
Explanation
## Step1: The equation which links charge flow (Q), current (
) and time (
) is the same as the one used in the example above. This equation is derived from the definition of current as the rate of flow of charge.###
## Step2:To calculate the charge flow through the filament lamp, we need to use the equation from step 1. However, we need to be careful with the units. The current is given in milliamperes (mA), but the standard unit of current in the equation is amperes (A). Therefore, we need to convert the current from mA to A. We can do this by dividing the current by 1000 (since 1A = 1000mA).## Step3:After converting the current to the correct unit, we can substitute the values of current and time into the equation to calculate the charge flow.