An alternating current, having the waveform shown in the diagram above, is represented by the equation x = X_o sinwt. Which of the following represents X_o?

What is the potential difference between X and Y in the diagram above if the battery is of negligible internal resistance

Calculate the current in the 30 resistor in the diagram above if the battery is of negligible internal resistance

Which of the following is a wind instrument?

A cell of e.m.f 1.5V and internal resistance 2.552 is connected in series with an ammeter resistance 0.50 and a load of resistance 7.00. Calculate the current in the circuit