A power BJT is used as a power control switch by biasing it in the cut off region (off state) or in the saturation region (on state). In the on state

• A. both the base-emitter & base-collector junctions are forward biased
• B. the base-emitter junction is reverse biased, and the base collector junction is forward biased
• C. the base-emitter junction is forward biased, and the base collector junction is reversed biased
• D. both the base-collector & the base-emitter junctions are reversed biased