Engineering ➤ Electrical and Electronics Engineering ➤ Ohms-Law
Question 16
Q16. How much resistance is needed to draw 17.6 mA from a 12 volt source?
Question 17
Q17. A current of 200 μA through a 6.8 kΩ resistor produces a voltage drop of
Question 18
Q18. Twelve volts are applied across a resistor. A current of 3 mA is measured. What is the value of the resistor?
Question 19
Q19. Four amperes of current are measured through a 24 Ω resistor connected across a voltage source. How much voltage does the source produce?
Question 20
Q20. A 120 V lamp-dimming circuit is controlled by a rheostat and protected from excessive current by a 3 A fuse. To what minimum resistance value can the rheostat be set without blowing the fuse? Assume a lamp resistance of 20 ohms.
