There must have been a build up of static electricity, either in yourself or in the trolley. The shock is the spark as it makes its way to earth.
RCD cut the current to the circuit while preventing the electric shock
no actually dc current is more dangerous than ac because dc is a direct current and has no current zero condition ,which is very dangerous and do not leave us if we get shock while ac current leave us when we get shock
it is a flow of charge practically from negative to positive terminal
to cut of the item or equipment inside emergency trolley, eg: micropore.
An electromagnet if formed by pushing current through a coil. If the circuit is truly open, current will cease to flow, thus no electromagnet.
The shock is due to static electricity jumping across as it heads to earth.
Accoridng to Aristotle, the trolley would stop. According to Galileo the trolley would slow down and eventually stop.
You can move a trolley with a magnetic force (e.g. use magnets to draw the trolley away from it's original position - assuming it is made of a magnetic material), a gravitional force (e.g. rolling the trolley down a ramp) or with an applied force (e.g. pushing the trolley).
when you get zapped in the supermarket by your trolley it sends a little bit of energy through the metal in the trolley to your body, and if you get shocked by lightning you get a big shock of energy. but with a metal door handle it is exactly like the shopping trolley and it will send a shock of energy through the metal to your body. i hope this helped as i am only 13 :)
Charles Van De Poele invented the idea of trolley poles pushing upward against the trolley wire with the first electric transit.
The push behind a current is voltage.
They were named the Dodgers because in Brooklyn they had trains running through the city and people would always have to "Dodge" them That is how they got their name! The early trolleys in Brooklyn were run on DC power. This caused the trolleys to build up excessive electrical current and when the amount became too great the trolley would make a popping noise. This was an advanced warning of an oncoming electrical shock to customers. When this popping was heard the passangers would get off the trolley ASAP to avoid the shock. This activity was known as Trolley Dodging.
So no other person but the victim gets the shock.
Yes. It determines the direction in which change will happen. If I am pushing a trolley along the supermarket aisle, and you push with me, the trolley will go faster. If you push against me it will slow down, and if you push sideways it will change direction.
When current flows in a conductor you do not get an electric shock provided you do not touch the conductor.
direct current
It is impossible to separate the two. The voltage determines the magnitude of the current, and the current causes the damage. So, they are both responsible for electric shock.