If the current delivered in a battery is 1.2 A and the power required for the light is 0.2W, How many volts this power need to be

answer; ///i believe that the correct answer is (45*) at a 45 degree check first good

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27