21. Determine the (i) nominal value, tolerance, and maximum-minimum resistance value of following resistor Orange =3 White =9 Green =5 Silver=±10% and (ii) specify the color code of a resistor with nominal value of 1.5KN and a tolerance of ±5% and the color code of a resistor with nominal value of 2.5MN and a tolerance of ±1%.

An electric circuit has a battery with an EMF of 1.50 V. Its positive terminal is connected to its negative terminal by a copper wire in a circular loop having a radius of 0.500 m. Solve for the drift velocity in the wire if there is one free electron per copper atom. Detailed assumptions: - The size of the cell is negligible compared to the length of the circuit. - Copper resistivity: p = 1.80x10-8 Q-m. - Copper density: D = 8.96x103 kg-m-3 - Copper relative atomic mass: mą = 63.5 g/mol Express your answer in mm/s.

An electric circuit has a battery with an EMF of 1.50 V. Its positive terminal is connected to its negative terminal by a copper wire in a circular loop having a radius of 0.500 m. Solve for the drift velocity in the wire if there is one free electron per copper atom. Detailed assumptions: - The size of the cell is negligible compared to the length of the circuit. Copper resistivity: p 1.80x10-00-m Copper density D- 8.96x10° kg-m kg-m-3 - Copper relative atomic mass: ma = 63.5 g/mol Express your answer in mm/s.

2.  A 1.5 V battery produces 46.3 mA when it is across a 30.0 Ω load. The potential difference across the battery's terminals is_________ V. Normal format with 3 SF.    A 12V battery produces 0.22 A current when it is across a 50.0 Ω load. The battery's internal resistance is ________ . Normal format with 3 SF.

3. Find the current in the R₂ resistor in the drawing (V₁ = 10.0 V, V₂ = 24.0 V, R₁ 2). A 0 ssf60 ssf60 ssf60 ssť60 so ssin V₁ ( R₁ ogjis (gjes do pojas (9jss (9jss (91 Sef60 ssf60 s www R3 - R₂ = V₂ 1.00, R₂ = 2.20 , and R3 = 2.50 ssf60 ssfó ssf6f6060 s60 s sf60 ssf60 ssf60 ssf6( 60 s 50 f60 ssf60 ssf60 ssf60 ssf60 ssf60

In the given circuit, R₁= 6.00 ohms, R₂ = 3.00 ohms and R3 = 5.00 ohms. The battery has negligible internal resistance. The current 1₁ through R₁ is 4.00 A. Calculate the EMF of the battery in the circuit in volts. R₁ ww +9 R₂ R3 O 112 volts; O 60 volts: O 84 volts; O 24 volts;

37. A resistor is made from a material that has a temperature coefficient of resistivity of 2.0 x 10-3/°C. Its resistance is 30 2 at 20 °C. At what temperature is its resistance equal to 33 2?

What is the resistance of a resistor if 10V is needed to produce a current of 2A? O 200 O 50 O 100 O 2.5 Ω What is the approximate value of this resistor? Second digit Multiplier First digit Table 25.3 Color Codes for Resistors Value as Color Digit Black Brown 1 Red 2 Orange 3 Yellow Green 5 Blue Violet Gray White O Tolerance Value as Multiplier 1 10 102 10³ 25 ΚΩ 56 ΚΩ 104 105 106 108 109 O O Ο 36 ΚΩ 360 ΚΩ

What is the color used to code a resistor having a maximum resistance value of 78 k2 at 20% tolerance? COLOR CODE OF RESISTORS Color Number Multiplier Tolerance % Black 0 1 Brown 1 10¹ Red 2 10² Orange 3 10³ Yellow 4 104 Green 5 10⁰ Blue 6 106 Violet 7 107 Gray 8 108 White 9 10⁹ Gold 10-1 ± 5% Silver 10-² ± 10% Colorless ± 20%

)The current through the 50.0 resistor in the circuit below is 0.14 A. Determine the & of the battery. R = 10.0 2 %3D R3 = 50.0 2 %3D R = 33.0 2 I = 0.14 A- R 68.02 %3D %3D %3D r = 0. 80 2