A flashlight bulb is connected to two dry cells with an equivalent voltage of 4.50 V. If the bulb draws a current of 12.0 mA (1000mA = 1A), its resistance is (2 points) a 540. Ohms b 375 Ohms c 266 Ohms d 2.66 Ohms e 145 Ohms

b. 375 Ohms

Explanation:

Given the following data;

Voltage = 4.5 V

Current = 12 mA

To find the resistance;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

Where;

Conversion:

1000 mA = 1 A

12 mA = 12/1000 = 0.012 A

Substituting into the formula, we have;

Resistance, R = 375 ohms

a) cold, dry

explanation:

continental polar masses are cold and dry air masses because the cold air cannot hold much moisture. as they move into warmer air, they can trigger precipitation.

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation: