What resistor is connected in series to a 12-V battery?

E7. A 40-Ω resistor and a 60-Ω resistor are connected in series to a 12-V battery. a. What is the current flowing through each resistor? b. What is the voltage difference across each resistor?

What is the relationship between current and power dissipation of resistor?

However, if you increase the value of the resistor, current will decrease, and the resistor’s power dissipation will decrease as well. This correlation follows Ohm’s law, which states the formula for current as I (current) = V (voltage) ÷ R (resistance).

What is the difference between current and voltage across R2?

The current is the same in each, since it is a series circuit. b. The voltage difference is greater across R2. According to Ohm’s Law, V = I × R, so for the same current, the larger the resistance, the greater the potential difference. Q21. In the circuit shown, the circle with an A in it represents an ammeter.

What is the current that passes through a resistor?

A charge of 30 C passes at a steady rate through a resistor in a time of 5 s. What is the current through the resistor? E5. A current of 0.6 A flows through a resistor with a voltage difference of 120 V across it.

How do you find the potential difference between two resistors?

According to Ohm’s Law, V = I × R, so for the same current, the larger the resistance, the greater the potential difference. Q21. In the circuit shown, the circle with an A in it represents an ammeter.

How many resistors does it take to power a battery?

Four 38-Ω resistors are connected in series to a 18-V battery of negligible internal resistance. Determine the voltage difference across each resistor. A 48-Ω resistor and a 28-Ω resistor are connected in series to a 12-V battery of negligible resistance.