Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If an electric heater is rated at 1000 W, then the time required to heat one litre of water from `20^o C`to `60^o C` is - Sarthaks eConnect

If an electric heater is rated at 1000 W, then the time required to heat one litre of water from `20^o C` to `60^o C` is:

1 min 24 sec

2 min 48 sec

4 min 17 sec

5 min 36 sec