Suppose a 8-V battery has an internal resistance of 0.3 ohm. What is the current that flows through the battery, if the battery terminals are momentarily shorted together? What is the terminal voltage if the battery delivers 0.25 amps to a circuit?

A 7.5 volt zener diode has its nominal voltage when I = 5mA. The incremental resistance at the operating point is r₂ = 50 ohms. Calculate the zener voltage if the current is increased to 15mA.

5) a) An AA sized alkaline-manganese battery has a Thévenin voltage of 1.5V and an internal resistance of 0.40. What is the largest current that can be drawn from it if the terminal voltage is not to drop below 1V? b)How much power can the battery in part a deliver to a load of resistance R? What value of resistance R gives the largest power delivered to the load? What is that power?

The single-phase bridge rectifier of Figure below is required to supply an average voltage io of Vdc = 300 V to a resistive load of R = 15 2. Determine the voltage and current ratings of diodes and transformer. D₁ D₂ D3 D₂ www vo