A speaker, rated at 2V, draws a current of 3A. It is left switched on for 4 seconds. How much electrical work is done on a speaker?
1
Remember the equation for electrical work done
E = P xt= xVxt

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?