If resistance rises, current flow decreases. If the voltage is increased proportional to the rise of resistance, the current will remain the same.
hiss - a fricative sound (especially as an expression of disapproval); the performers could not be heard over the hissing of the audience fizzle, hissing, hushing, sibilation noise - sound of any kind (especially unintelligible or dissonant sound); he enjoyed the street noises; they heard indistinct noises of people talking; during the firework display that ended the gala the noise reached 98 decibels
this is usually because the stop cock valve or drain back valve is worn or you have sprung a leak in the pipes supplying the toilet tank. The hissing noise may merely be the sound of water filling the bowel, and the acutal proble is the valve no closing when the float ball reaches the top. The first diagnosic is to. 1. Jiggle the handle to make sure the flapper is properly seated. wait a one to two minutes to make sure if it will stop the water from filling or stop the hissing noise. 2. Second step to check is the float ball.