Question

Several 150 Ω resistors are to be connected in such a way that a current of 2 A flows from a 50 V source. How many such resistors are required along with a mode to connect them?​

Answer 1

Answer:

6 resistors

Explanation:

Given :

• Many 150 ohms resistor are connected
• 2 amperes of current should flow in them
• Source shall have voltage of 50 volts

To find :

• No of resistors to be connected

Using ohms law:

V=IR

50=2×R

$r = \frac{50}{2}$

R = 25 ohms

Now we need to find number of 150 ohms resistor to be connected in parallel to get equivalent resistance equal to 25 ohms

If resistance is same in all resistors, req = R/no.of resistors

150/no.of resistors = 25

No.of resistors = 150/25

No.of resistors = 6

Six 150 ohms resistors must be connected in parallel to get an equivalent resistance of 25 ohms

Answer 2

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Question

▪Several 150 Ω resistors are to be connected in such a way that a current of 2 A flows from a 50 V source. How many such resistors are required along with a mode to connect them?

_______________________________

Given :-

• Several 150 ohm registors are connected

• Current flow in each =2 A (Ampere )

• Source have voltage of 50 volts.

_______________________________

To Find:-

• Number of resistors

_______________________________

Solution :-

By using Ohm's law

☛V=I/R

☛ R =V/I

☛ R = 50/2

☛ R = 25 ohms.

Now,

Resistance /No. of resistors =25

☛ No. of resistors =150/25

☛ No. of resistors =6

∴The number of 150 ohms resistors is 6