True or false questions about problem solving Write t or F T

True or false questions about problem solving. Write t or F The first step in solving a problem is to understand the problem you are trying to solve____ since you are a busy student, it is best to only read a problem once and then get busy solving it____ For electrical circuit problems visualizing the circuit wires and elements is less important than formulating the correct equation(s)____ After computing the voltage across a resistor its numerical value is 1.547822345567 V_0olts. After rounding to 3 significant digital the answer is 1.548 volts____ E = mc^2 is a useful formula in electrical engineering practice____ A \'series\' circuit is compared to the grid of streets in a large city____ A \'parallel\' circuit is compared to when electrons run around a track____ A \'short circuit\' is when a device or element has no resistance (zero Ohms)____ In problem solving there is only one method (technique) to solve for voltage in a circuit____

Solution

a) True

b) True

c)True(rather than visualization of elements it is better to write the equations accordingly for the given elements and after solving we will get the required values perfectly )

d)True(we will round it off to near value which is next to the third digit)

e)false(the equation given by Albert Einsteen in which gives relation between energy and mass.but electrical engineering we will not that much concentrate on this equation)

f)True(grid of streets are look like a series cicuit in which one street end is connected to starting point of another street)

g)True(electrons around a track are like parallel circuit.they revolves round in the parellel paths )

h)True(short circuit means infinite amount of current.according to ohms law V=IR.at R=0 the value of I becomes infinity.)

i)True(what ever the circuit given to us to calculate voltage we will use only one law that is OHM\'s law.V=IR)

f)