That depends on the type of thermistor
Some solid state thermistors are only able to run on one correct polarity and so are direct current.
Other thermistors designed as simple heat variable resistors can run on both direct current and alternating current.
I hope you mean the thermistor. If so,well it does not obey Ohms law. When current flows through the thermistor its temperature start increasing which reduces the resistance of the thermistor. A reduction in resistance at the same supply voltage will cause the current to increase. Thus it's not obeying Ohms law.
V=IRR changes as a result of the change in temperature.
A thermistor changes its resistance when the temperature changes. This means as the room temperature changes the current in the circuit containing the thermistor changes. This change in current is detected by the heater circuit, turning the heater on and off.
The symbol of a thermistor is a resistor with an arrow pointing towards it.
When the thermistor in the circuit is heated, its resistance decreases due to the negative temperature coefficient of thermistors. This reduction in resistance allows more current to flow through the circuit. As a result, the increased current causes the lamp to receive more power, leading to a brighter illumination.
direct current.
A thermistor is an electrical component that decreases in resistance as its temperature increases. Specifically, a negative temperature coefficient (NTC) thermistor exhibits this behavior, making it useful for temperature sensing and compensation in various electronic applications. As the temperature rises, the thermistor allows more current to pass through, effectively lowering its resistance.
A RV absorption refrigerator uses a thermistor as a thermostat. The thermistor is moved up or down to regulate the refrigerator temperature.
There is only one type of direct current and its 'frequency' is zero.
direct current
Alternating current. Direct current is used in batteries.
direct current