Any amount, so long as you have the spell/trap zone spaces for them.
There are 10 S/T slots, so there can be a maximum of 10 continuous spell cards active, 5 on each side of the field. The Field Spell card is a special kind of continuous card, so technically that makes 11 in total if you count it.
Continuous Effects are not usually 'used', they are always active. But to put it into context, Bountiful Artemis has an effect that lets you draw cards when counter traps resolve - this effect is continuous, it doesn't matter whose turn it is, or if you have drawn cards from it before, it will let you draw a card every time the condition is met.
An analog signal is characterized by continuous amplitudes and continuous time.
There are many ways to find and purchase time cards. Of course the easiest way to get them is internet,they are cheap and are shipped free. Another way to purchase time cards is to look in a cards shop which should be in any Shopping center.
As many times u want
Continuous. Discrete variables are only expressed as integer values, whereas continuous is, as its name suggests, continuous.
No. Intercept can only be used after a monster is successfully summoned, but by the time Jinzo is considered successfully summoned, his continuous effect is preventing the activation of trap cards.
There can be many but one at a time.
The main difference in a continuous audit and a periodical audit is the amount of time an audit is done. A continuous audit is done many times throughout the year and a periodical is performed once a year. A continuous audit is also expensive because of the amount of time spent doing it.
No. Here is what happens when a player summons Jinzo. The turn player offers tribute, and places Jinzo on the field. His continuous effect is not yet 'switched on', nor any other continuous effects. This is where either player can negate his summon with a summon negation card. If neither player does so, then he is considered to be successfully summoned, his own continuous effect is now active, and while now is the time to play cards in response to the successful summon, he's preventing any traps from being activated, which includes Trap Hole.
Infinitely many. Unless you consider the Planck time as the smallest, indivisible unit of time so that time is not a continuous variable.
It depends on your current situation and how organized you are. It is usually a good idea to have several active cards at a time, where some are for everyday purchases while others are more for emergencies. The actual number of cards that match each purpose is up to your needs and ability to pay.