Question

12. You are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed? 13. The current through a flashlight bulb is 40 mA and the total battery voltage is 4.5 V. The resistance of the bulb is approximately 14. If you wish to increase the amount of current in a resistor from 120 mA to 160 mA by changing the 24 V source, what should the new voltage setting be? 15. IT 24 V are applied across a resistor and there are 10.9 mA of current, the resistance is 16. How much resistance is needed to draw 17.6 mA from a 12 volt source? 17. How much current is produced by a voltage of 18 kV across a 15 kn resistance? 18. A current of 200 MA through a 6.8 resistor produces a voltage drop of K 19. Four amperes of current are measured through a 24 resistor connected across a voltage source. How much voltage does the source produce? 20. Twelve volts are applied across a resistor. A current of 3 mA is measured. What is the value of the resistor? 21. When 12 V are applied across a 68 resistor, the current is 22. Approximately how much current flows through a 3.3 M resistor across a 30 V source?

With the operations pls, I need it, help​

Answer 1

Respuesta:

Hi, hey, I speak English, although I'm Spanish, but it's very difficult and there are too many questions. You can separate them by individual questions because you don't know which is which.