2.7-2.21 energy and voltage in circuits

Question 1

why are series or parallel circuits more appropriate for particular appliances

Answer 1

-in a parallel circuit each component is independently connected to the voltage source, meaning the failure of one component does not affect others

• in a series circuit, if one component fails, all will go out

Question 2

describe a series circuit in terms of voltage, current and components

Answer 2

As voltage increases the current also increases.
In general, the more components in a circuit, the lower the current.

Question 3

what can LEDS be used for

Answer 3

to indicate the presence of a current in a circuit

Question 4

how do you calculate voltage?

Answer 4

voltage= current x resistance

Question 5

define current

Answer 5

rate of flow of charge

Question 6

how do you calculate charge?

Answer 6

charge= current x time

Question 7

define voltage

Answer 7

energy transferred per unit of charge

Question 8

how to calculate energy transferred?

Answer 8

energy transferred= charge x voltage