What could be the possible danger if rheostates are used in parallel?

Using rheostats in parallel can lead to several dangers, including overheating and potential failure of the components. Since the resistance of each rheostat decreases with parallel configuration, the total current may exceed safe limits, causing excessive heat generation. This can result in damage to the rheostats and possibly create fire hazards. Additionally, unequal load distribution may lead to instability in the circuit.