railway RRB JE (CBT I + CBT II) Mock Test 2024 Analog Electronics Power Amplifiers and 555 Timer and Voltage Regulators Power Amplifier
A power amplifier supplies 50 W to an 8 Ω speaker. Find ac output voltage and ac output current.
1
25 V, 2 A
2
20 V, 2.5 A
3
50 V, 1 A
4
12.5 V, 4 A