Which parameter is NOT typically applicable for an incandescent light bulb?

Incandescent light bulbs are designed to operate primarily on a specific voltage and power rating, which directly relates to their brightness and energy consumption. The rated power indicates how much energy the bulb consumes when it operates optimally, while the rated voltage specifies the voltage at which the bulb is most effective and safely operates.

Frequency is a parameter more relevant to certain types of electrical devices, particularly those involving alternating current (AC) motors or appliances, where the frequency can affect performance. However, for incandescent bulbs, the power and voltage are the main considerations, as these bulbs do not rely on frequency for their operation.

Rated current, while it can be calculated based on the power and voltage, is not commonly specified for incandescent bulbs. Instead, it’s usually derived as needed in circuit design. Therefore, rated frequency is the parameter that does not typically apply to incandescent light bulbs.