Given: Four resistance heaters are connected in parallel. Their resistances are as follows: Heater #1 20 ohms Heater #2 30 ohms Heater #3 60 ohms Heater #4 10 ohms . What is the total resistance of the parallel circuit?

Given: Four resistance heaters are connected in parallel. Their resistances are as follows: Heater #1 20 ohms Heater #2 30 ohms Heater #3 60 ohms Heater #4 10 ohms . What is the total resistance of the parallel circuit?