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A three - way light bulb has three brigh...

A three - way light bulb has three brightness settings ( low , medium , and high) but only two filaments . The two filaments are arranged in three settings, when connected across a `120 V` line and can dissipate `60 , 120 and 180 W`. Answer the following questions:
(i) Higher resistance filament only works for `60 W`
ii. Low resistance filament works for `120 W`
iii.Low resistance filament works for `60 W`
iv. High resistance filament works for `120 W`
v. Low and high resistance filaments in parallel for `180 W`
vi. Low and high resistance filament in series for `180 W`

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